{"title":"Back Boxes \u0026 Accessories","description":"\u003cp\u003eBehind every socket and switch sits a back box. We stock galvanised steel back boxes, PVC dry-lining boxes and surface-mount pattress boxes in single and double gang, plus the mounting accessories that go with them. Whether you're chasing into masonry, fitting to plasterboard or surface-wiring a garage, you'll find the right depth and material for a flush, secure fit.\u003c\/p\u003e","products":[{"product_id":"3-gang-47mm-single-double-galvanised-steel-back-box","title":"3 Gang 47mm Single + Double Galvanised Steel Back Box","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge 3-gang 47mm back box is a galvanised pressed steel enclosure designed to mount a 1-gang and 2-gang wiring accessory plate side by side in a single opening. The box measures 220mm wide by 73mm high with a 47mm recessed depth, providing the cavity space needed for switch, socket or dimmer wiring behind two standard UK faceplates.\u003c\/p\u003e\n\u003cp\u003eDesigned for residential and commercial installations where multiple switches or sockets need to be grouped together without installing separate back boxes, the enclosure fits standard 86 x 86mm single-gang and 86 x 146mm double-gang plates. The four fixed mounting lugs take standard faceplate screws, and the integral earth terminal allows for safe earthing of metal faceplates. Pre-cut 20mm knockouts on all four sides allow conduit or cable entry from any direction.\u003c\/p\u003e\n\u003cp\u003eThe 1mm pressed steel construction is galvanised for corrosion resistance and manufactured to EN 60670 standards. The 47mm depth accommodates most switch and socket mechanisms without needing deeper excavation into plasterboard or masonry walls. The IP20 rating makes this suitable for dry indoor locations but not for bathrooms, outdoor use or other wet environments where a higher IP rating would be required.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e73 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e220 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecessed Depth\u003c\/td\u003e\n\u003ctd\u003e47 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003ePressed steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_4881125_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat faceplate sizes does this back box accept?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe box is designed for one standard 86 x 86mm single-gang plate and one 86 x 146mm double-gang plate mounted side by side. Other plate combinations may not align correctly with the mounting lugs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this be used in a bathroom?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The IP20 rating means this back box is only suitable for dry indoor locations. Bathrooms and other wet environments require back boxes with higher IP ratings, typically IP44 or above depending on the zone.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat wall depth is needed for installation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 47mm recessed depth requires a minimum wall cavity of 50-55mm to allow space for the box and any wiring or connectors behind the faceplates. Plasterboard stud walls and most masonry walls accommodate this depth without issue.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it come with fixing screws?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The back box is supplied bulk-packed without fixings. You will need appropriate wall plugs and screws for masonry, or plasterboard fixings for stud walls, plus faceplate screws to secure the switches or sockets to the mounting lugs.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293652476171,"sku":"GSK347D","price":2.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/1045404_fe919dcb-2a1c-43d7-9fce-033c62d727a4.jpg?v=1714661888"},{"product_id":"1-gang-surface-box-brushed-chrome","title":"1 Gang Surface Box - Brushed Chrome","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge 1-gang surface box is a 92.5mm square polycarbonate mounting frame finished in brushed chrome, designed to accommodate a single 1-gang screwless or flat plate accessory where surface mounting is required. The box projects 34mm from the wall surface once installed and provides internal cable routing channels and fixing lugs for secure accessory attachment.\u003c\/p\u003e\n\u003cp\u003eSurface boxes are used where back boxes cannot be recessed into the wall — typically in solid masonry, tiled surfaces, glass partitions, or retrofit installations where cutting into the wall is impractical. This box accepts any standard Knightsbridge 1-gang screwless or flat plate accessory (switches, sockets, dimmers, data ports) and the brushed chrome finish matches the faceplate for a coordinated appearance. The IP20 rating suits dry indoor locations including kitchens, offices, and bedrooms.\u003c\/p\u003e\n\u003cp\u003eThe polycarbonate construction provides impact resistance and dimensional stability across temperature changes, while the brushed chrome finish is applied as a metallic coating over the polycarbonate base. The box includes internal cable entry points at the rear and sides, allowing cables to enter from multiple directions depending on the installation route. The 25-year warranty covers material defects and finish degradation under normal indoor use.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e92.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e92.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProjection\u003c\/td\u003e\n\u003ctd\u003e34 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003ePolycarbonate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eBrushed Chrome\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_3897727_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat accessories does this surface box fit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe box accommodates any standard Knightsbridge 1-gang screwless or flat plate accessory including switches, sockets, dimmers, USB sockets, and data ports. The accessory screws directly into the fixing lugs inside the box.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere are surface boxes typically used?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSurface mounting is used where back boxes cannot be recessed into the wall — common in solid masonry, tiled surfaces, glass partitions, listed buildings, or retrofit installations where cutting into the structure is impractical or prohibited.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this be used in bathrooms?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe IP20 rating is suitable only for dry indoor locations. Bathrooms require IP44-rated enclosures in zones 1 and 2 (near water sources). This box can be used in zone 3 (more than 2.4m from a water source) where splash contact is unlikely.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow are cables routed into the box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe box includes internal cable entry points at the rear and sides, allowing cables to enter from multiple directions. Entry points typically need to be knocked out or drilled to suit the specific cable diameter and routing path.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293732430091,"sku":"1GSBBC","price":5.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/409656_bf6e2740-2318-460f-9d29-0ec83e2e7778.jpg?v=1714663435"},{"product_id":"1-gang-surface-box-black","title":"1 Gang Surface Box - Black","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge 1-gang surface box is a black polycarbonate mounting box for switches and sockets where surface mounting is needed instead of flush installation. At 92.5mm square with a 32mm internal depth, it provides space for cable terminations behind single-gang screwless or flat plate accessories.\u003c\/p\u003e\n\u003cp\u003eUsed in commercial fit-outs, garage installations, workshops and retrofit residential projects where cutting into walls is impractical, the surface box fixes directly to a wall or panel with screws through the integral mounting lugs. Once fixed, a compatible switch or socket clips or screws onto the front of the box, concealing the wiring inside. The 32mm depth accommodates standard cable runs and terminations for single-gang accessories up to 13A load.\u003c\/p\u003e\n\u003cp\u003eThe black polycarbonate construction is impact-resistant and rated IP20 for indoor use. The box carries no earth terminal, so earth continuity must be maintained through the accessory or a separate earth flying lead. Knightsbridge backs the surface box with a 25-year warranty against material failure under normal use.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e92.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e92.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProjection\u003c\/td\u003e\n\u003ctd\u003e34 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003ePolycarbonate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_3407804_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat accessories fit this surface box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 92.5mm square footprint accepts any single-gang Knightsbridge screwless or flat plate switch or socket. Check that the accessory you plan to use is compatible with surface mounting rather than flush-only installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the box include an earth terminal?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. Earth continuity must be maintained through the accessory itself or via a separate earth flying lead connected to the metal mounting frame of the switch or socket.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used outdoors?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The IP20 rating is for indoor dry locations only. Outdoor or wet-location installations require a weatherproof IP-rated enclosure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is it fixed to the wall?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe surface box has integral mounting lugs with screw holes. Fix it directly to a wall, panel or stud using appropriate screws and wall plugs for the substrate type. Once secured, the accessory faceplate covers the fixings.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293732462859,"sku":"1GSBBK","price":3.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/207640_74ba7eaa-0c71-4cec-9ea4-a7f91145afb4.jpg?v=1714663437"},{"product_id":"1-gang-surface-mount-box-32mm-grey-polycarbonate","title":"1 Gang Surface Mount Box 32mm - Grey Polycarbonate","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThis Knightsbridge 1-gang surface mount box is a 92.5mm square polycarbonate enclosure with a 32mm internal depth, designed to house single-gang switches or sockets where flush mounting into the wall is not possible. The grey polycarbonate construction provides impact resistance and thermal stability suitable for both residential and commercial installations.\u003c\/p\u003e\n\u003cp\u003eThe box suits applications where cables run externally along walls, such as garage conversions, workshops, utility rooms and period properties where cutting into solid masonry or tiled surfaces is impractical. The 32mm depth accommodates standard wiring connections for screwless and flat plate switches and sockets without cable compression. The box mounts to the wall surface using two fixing screws through pre-drilled mounting points at opposite corners.\u003c\/p\u003e\n\u003cp\u003eThe grey finish is neutral enough to blend with industrial, workshop and modern interiors without the visual prominence of white surface boxes on darker walls. The polycarbonate material carries an IP20 rating, making it suitable for dry indoor locations but not for bathrooms, outdoor use or areas exposed to moisture. Cable entry points are moulded into the back and sides of the box, allowing knockout removal for cable routing from multiple directions.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e92.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e92.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProjection\u003c\/td\u003e\n\u003ctd\u003e34 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003ePolycarbonate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eGrey\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_3407811_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat switches and sockets does this fit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe box is compatible with any standard 1-gang screwless or flat plate switch or socket. The 92.5mm square footprint matches the mounting hole centres used across Knightsbridge and most other UK accessory ranges.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used outdoors or in bathrooms?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The IP20 rating means the box is suitable for dry indoor locations only. For bathrooms, outdoor use or damp areas you need a box with a minimum IP44 rating and sealed cable glands.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it include an earth terminal?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. This box does not have a dedicated earth terminal. The earth connection is made at the switch or socket terminals that mount inside the box.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is the cable routed into the box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCable entry points are moulded into the back and sides of the box. You knock out the required entry point with a screwdriver or similar tool, then feed the cable through. The box does not include cable glands or grommets.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293732528395,"sku":"1GSBGY","price":7.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/207642_f77a5653-7229-4ccc-a43e-0cff864acefc.jpg?v=1714663439"},{"product_id":"1-gang-surface-mount-box-polished-chrome","title":"1 Gang Surface Mount Box - Polished Chrome","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge 1-gang surface mount box is a 92.5mm square polycarbonate housing finished in polished chrome, designed to pair with screwless and flat plate switches and sockets where flush mounting into a wall is not possible. The 32mm internal depth accommodates standard wiring for single-gang accessories, and the box presents a chrome-finished exterior that matches Knightsbridge's polished chrome screwless faceplates.\u003c\/p\u003e\n\u003cp\u003eThis surface box is used where solid walls, tiled surfaces, or existing installations prevent cutting into the substrate. The polished chrome finish integrates with kitchens, bathrooms, offices and commercial environments already using chrome accessories. The box mounts directly to the wall surface using fixings through the internal mounting lugs, and the faceplate then clips or screws onto the front of the box depending on the accessory design.\u003c\/p\u003e\n\u003cp\u003eThe polycarbonate construction is impact-resistant and lighter than metal equivalents whilst maintaining dimensional stability. The IP20 rating confirms the box is suitable for dry internal environments but not wet zones or outdoor use. The 92.5mm footprint is consistent with standard UK 1-gang back box dimensions, so accessories designed for flush boxes will align with this surface-mounted alternative.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e92.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e92.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProjection\u003c\/td\u003e\n\u003ctd\u003e34 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003ePolycarbonate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003ePolished Chrome\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_3897752_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is this box used for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSurface mount boxes are used where flush mounting into a wall is not possible due to solid construction, tiling, or existing infrastructure. The box sits on the wall surface and provides housing for switches, sockets and other electrical accessories. The polished chrome finish matches Knightsbridge's screwless and flat plate ranges.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat depth does the box add to the wall?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe box projects 34mm from the wall surface. Once the faceplate is fitted, total projection will be approximately 40-45mm depending on the specific accessory used.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it include an earth terminal?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. This box does not include an earth terminal. Earthing must be managed through the accessory fitted to the box or via separate earthing arrangements in the installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used outdoors or in bathrooms?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe IP20 rating confirms this box is suitable for dry internal environments only. It is not rated for outdoor use or bathroom wet zones where higher IP ratings are required.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293732593931,"sku":"1GSBPC","price":5.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/409658_9af0abe0-0d85-4129-be4b-30cd653ddf73.jpg?v=1714663442"},{"product_id":"1-gang-surface-mount-box-white-polycarbonate-32mm","title":"1 Gang Surface Mount Box - White Polycarbonate 32mm","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge 1-gang surface mount box is a white polycarbonate enclosure measuring 92.5mm square with a 32mm projection from the wall. It provides the mounting platform and cable containment needed when surface-mounting switches, sockets, dimmers or grid faceplates on solid walls, tiled surfaces or locations where flush back boxes cannot be chased in.\u003c\/p\u003e\n\u003cp\u003eDesigned for use with Knightsbridge screwless and flat plate electrical accessories, the box accepts standard single-gang faceplates and provides sufficient internal depth for the terminals and cable bends required by UK wiring regulations. The polycarbonate construction is rated IP20 for dry indoor locations including living rooms, bedrooms, offices, retail spaces and hallways. Two brass fixing inserts on the rear corners allow the box to be screwed directly to the wall surface.\u003c\/p\u003e\n\u003cp\u003eThe white finish matches standard white switch and socket plates, providing a neutral appearance that blends into painted walls and woodwork. The 32mm projection keeps the overall surface-mounted assembly relatively slim while accommodating the depth required by most single-gang accessories. The box carries a 25-year manufacturer warranty and does not include an earth terminal — earthing is handled via the faceplate and metal sub-frame where applicable.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e92.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e92.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProjection\u003c\/td\u003e\n\u003ctd\u003e34 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003ePolycarbonate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_3407779_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat accessories is this surface box compatible with?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis 1-gang box accepts all standard single-gang electrical faceplates including Knightsbridge screwless and flat plate switches, sockets, dimmers, USB sockets and grid plates. It is designed specifically for surface mounting where flush back boxes cannot be installed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the box include an earth terminal?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. Earthing is handled via the faceplate and metal sub-frame where required by the specific accessory being fitted. The polycarbonate box itself does not provide earth continuity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere can this surface box be used?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe IP20 rating makes this suitable for dry indoor locations only, including living rooms, bedrooms, offices, hallways and retail spaces. It is not rated for bathrooms, kitchens near sinks, or outdoor use where moisture ingress is possible.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's the actual internal depth for cable bends?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 32mm depth specification refers to the usable internal space. This accommodates the terminals and cable bends required by most single-gang accessories while keeping the overall surface-mounted profile relatively slim against the wall.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293732626699,"sku":"1GSBW","price":7.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/207638_24b750ee-368f-4213-9c01-33a92988bf81.jpg?v=1714663444"},{"product_id":"single-16mm-pattress-box-with-earth-terminal-rounded-edge-white","title":"Single 16mm Pattress Box With Earth Terminal - Rounded Edge White","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge CU1300 is a single-gang 16mm pattress box designed specifically for use with the Knightsbridge Curved Edge (CU) series of wiring accessories. The box is moulded from white thermoset resin with a rounded edge profile that matches the curved aesthetic of CU-series faceplates, creating a flush fit between the box and the cover plate when installed on the wall surface.\u003c\/p\u003e\n\u003cp\u003eDesigned for surface-mounting in residential and light commercial installations where recessing into the wall is not practical or desired, the 16mm depth provides enough internal space for single-gang switches, sockets or data points with standard cable terminations. The integrated earth terminal allows protective earth continuity to be maintained through the installation without requiring a separate earth block or conductor loop.\u003c\/p\u003e\n\u003cp\u003eThe thermoset resin construction is harder and more heat-resistant than standard PVC back boxes, maintaining dimensional stability during the life of the installation. The white finish matches standard UK wall colours and the material carries anti-microbial properties tested to ISO 22196:2011, reducing bacterial growth on the box surface in areas where hygiene is a concern. The IP20 rating makes this suitable for dry indoor locations but not wet rooms or outdoor use.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e86 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e86 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecessed Depth\u003c\/td\u003e\n\u003ctd\u003e16 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eThermoset resin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnti-Microbial Properties\u003c\/td\u003e\n\u003ctd\u003e3rd Party Tested to ISO 22196:2011\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2301374_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eIs this compatible with standard single-gang accessories?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis pattress box is designed specifically for Knightsbridge Curved Edge (CU) series wiring accessories. The rounded edge profile matches the curved aesthetic of CU faceplates. It may not sit flush with sharp-edged or flat-edged accessories from other ranges.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this be used for outdoor installations?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The IP20 rating makes this suitable only for dry indoor locations. For outdoor or wet-room installations you need a higher IP-rated enclosure, typically IP55 or above.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the earth terminal do?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe integrated earth terminal provides a fixed brass terminal inside the box for connecting the protective earth conductor from the cable to the earth connection on the wiring accessory. This maintains earth continuity through the installation without needing a separate earth block.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the warranty period?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKnightsbridge provides a 25-year warranty on this pattress box, covering manufacturing defects and material failure under normal use.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293785350411,"sku":"CU1300","price":1.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/135288_c74ac1e8-b3b8-42ee-9999-fdfde6e42fb7.jpg?v=1714664084"},{"product_id":"knightsbridge-25mm-single-pattress-box-white-rounded-edge","title":"Knightsbridge 25mm Single Pattress Box - White Rounded Edge","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge 25mm single pattress box is an 86mm x 86mm flush-mounting back box in white thermoset resin, designed specifically for use with Knightsbridge's Curved Edge (CU) series of wiring accessories. The rounded profile matches the contoured edge of CU faceplates, ensuring a flush fit between the wall surface and the cover plate once installed.\u003c\/p\u003e\n\u003cp\u003eDesigned for dry-lining installations in residential and light commercial settings, the 25mm recessed depth allows the box to sit within standard stud walls and partition boards without needing to chase into solid masonry. The thermoset resin construction resists cracking during installation and provides dimensional stability over time. The IP20 rating makes the box suitable for general interior locations away from direct water contact.\u003c\/p\u003e\n\u003cp\u003eThe white finish integrates cleanly with white and light-coloured walls, minimising visual impact where the box edge may be visible around the faceplate. The anti-microbial properties tested to ISO 22196:2011 reduce bacterial surface growth, making the box suitable for healthcare, hospitality and food preparation environments where hygiene standards require tested materials. The 25-year warranty covers manufacturing defects across the product's operational life.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e86 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e86 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecessed Depth\u003c\/td\u003e\n\u003ctd\u003e25 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eThermoset resin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnti-Microbial Properties\u003c\/td\u003e\n\u003ctd\u003e3rd Party Tested to ISO 22196:2011\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2301384_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eIs this compatible with other Knightsbridge ranges?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The rounded edge profile is designed specifically for the Knightsbridge Curved Edge (CU) series. Standard square-edge faceplates from other Knightsbridge ranges will not sit flush against this box. Use a standard square-edge pattress for non-CU series accessories.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the box include an earth terminal?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. This pattress box does not include an earth terminal. Earthing continuity must be maintained through the accessory itself or via a separate earth connection to the metal mounting lugs on the box.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat wall types is the 25mm depth suitable for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 25mm depth suits dry-lining installations in plasterboard, stud walls and partition boards where the box can be mounted flush within the cavity. For solid walls the box requires chasing to the full 25mm depth plus clearance for cable entry.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the anti-microbial properties?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe thermoset resin is tested to ISO 22196:2011, which measures antibacterial activity on plastic surfaces. This reduces bacterial surface growth and makes the box suitable for healthcare, hospitality and food preparation environments where hygiene standards require tested materials.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293785383179,"sku":"CU1400","price":1.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/135290_27d4c135-5325-4a7f-856c-b824cd335bbc.jpg?v=1714664086"},{"product_id":"knightsbridge-47mm-single-pattress-box-white-curved-edge-cu-series","title":"Knightsbridge 47mm Single Pattress Box - White Curved Edge (CU Series)","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge CU1610 is a 47mm single pattress box designed for the Curved Edge (CU) series of wiring accessories. Moulded from white thermoset resin, the box measures 86x86mm on the wall face with a 47mm recessed depth, providing clearance for single-gang switches, sockets and dimmers within the CU range. An integrated earth terminal and cable strain relief are built into the rear of the box.\u003c\/p\u003e\n\u003cp\u003eDesigned for flush-mounting in plasterboard, dot-and-dab or solid walls, the pattress box accepts single-gang accessories that require a 47mm minimum back box depth. The curved edge profile of the box matches the rounded corners of CU series cover plates, allowing the accessory faceplate to sit flush with the box edge once fitted. The cable strain relief holds cables in place during installation, reducing movement inside the back box after the accessory is connected.\u003c\/p\u003e\n\u003cp\u003eThe thermoset resin construction is more resistant to deformation under heat than standard PVC back boxes, making it suitable for high-load switches or sockets where the back of the accessory may warm during use. The white finish matches the standard colour of CU series white accessories and becomes invisible once the cover plate is installed. The box carries IP20 rating for indoor dry-location use and has been tested to ISO 22196:2011 for anti-microbial properties.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e86 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e86 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecessed Depth\u003c\/td\u003e\n\u003ctd\u003e47 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eThermoset resin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnti-Microbial Properties\u003c\/td\u003e\n\u003ctd\u003e3rd Party Tested to ISO 22196:2011\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2301406_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat accessories fit this back box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe CU1610 is designed for single-gang accessories from Knightsbridge's Curved Edge (CU) series. Any CU series switch, socket or dimmer rated for 47mm minimum back box depth will fit. The curved edge profile of the box matches the rounded corners of CU cover plates.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat wall types can it be installed in?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe box suits flush-mounting in plasterboard (using appropriate fixings), dot-and-dab plasterboard on masonry, or solid masonry walls. The 47mm depth requires sufficient wall cavity depth or chase depth in solid walls.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the cable strain relief feature?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCable strain relief holds the incoming cable in place inside the back box, preventing movement that could loosen terminal connections over time. The cable is secured by the relief before being connected to the accessory terminals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy thermoset resin instead of standard PVC?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThermoset resin resists deformation under heat better than standard PVC. For high-load sockets or switches that may warm during use, thermoset back boxes maintain their shape and provide more stable long-term mounting for the accessory.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293785809163,"sku":"CU1610","price":1.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/135296_07522c1c-218d-4b23-a34e-b35ebbffe8de.jpg?v=1714664094"},{"product_id":"knightsbridge-35mm-single-pattress-box-with-earth-terminal-white-rounded-edge","title":"Knightsbridge 35mm Single Pattress Box with Earth Terminal - White Rounded Edge","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge CU1700 is a 35mm deep single-gang pattress box moulded from white thermoset resin with rounded edges that match the Curved Edge (CU) series of wiring accessories. The box includes an integrated earth terminal for grounding metallic faceplates and electrical accessories, and measures 86x86mm to fit standard UK single-gang cut-outs.\u003c\/p\u003e\n\u003cp\u003eDesigned for surface-mount installation on solid walls, plasterboard and partition walls where recessing into the wall structure is not possible or practical, the 35mm depth provides sufficient cable entry space for switches, sockets and other wiring accessories without requiring significant wall chasing. The rounded edge profile reduces the visual impact of the box on the wall surface and aligns flush with Knightsbridge CU-series faceplates to create a continuous curved transition from wall to accessory.\u003c\/p\u003e\n\u003cp\u003eThe thermoset resin construction is impact-resistant and dimensionally stable across typical domestic temperature ranges, and the material carries anti-microbial properties tested to ISO 22196:2011 for applications in healthcare, hospitality and food-preparation environments. The white finish matches standard UK plasterboard and painted walls, reducing the need for repainting around the box. The IP20 rating confirms suitability for dry indoor locations but not for use in bathrooms or outdoor applications.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e86 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e86 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecessed Depth\u003c\/td\u003e\n\u003ctd\u003e35 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eThermoset resin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnti-Microbial Properties\u003c\/td\u003e\n\u003ctd\u003e3rd Party Tested to ISO 22196:2011\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2301392_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat accessories is this pattress box compatible with?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe CU1700 is designed specifically for use with Knightsbridge Curved Edge (CU) series wiring accessories. The rounded edge profile matches CU-series faceplates to create a flush, continuous transition from wall to accessory. It will physically accept other single-gang accessories but the edge profiles may not align.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this be used for outdoor installation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The IP20 rating confirms the box is suitable for dry indoor locations only. For outdoor or damp-location installations, a weatherproof enclosure with a higher IP rating (typically IP55 or IP65) is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the earth terminal need to be connected?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, if you are installing metallic faceplates or accessories that require earthing. The earth terminal should be connected to the circuit protective conductor (earth wire) to ensure safe grounding of exposed metallic parts. For plastic faceplates with no exposed metal, the earth terminal may remain unused but should still be sleeved.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the anti-microbial property mean?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe thermoset resin used in this pattress box has been tested to ISO 22196:2011 and shown to inhibit bacterial growth on the surface. This makes it suitable for installation in healthcare, hospitality and food-preparation environments where surface hygiene is a priority.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293785841931,"sku":"CU1700","price":1.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/135292_611e7396-a6bb-4bb2-8b9b-1bf878480538.jpg?v=1714664096"},{"product_id":"metalclad-6-8-gang-surface-mount-back-box-44mm-depth","title":"Metalclad 6-8 Gang Surface Mount Back Box - 44mm Depth","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge metalclad 6-8 gang surface mount back box is a 138mm square, 44mm deep steel enclosure designed to house modular grid faceplates with 6 to 8 module positions. The box mounts directly onto a wall surface without requiring a cut-out or flush installation, making it suitable for environments where surface wiring is specified or where the wall substrate does not allow flush mounting.\u003c\/p\u003e\n\u003cp\u003eDesigned for use in industrial, commercial and utility installations where metalclad wiring accessories are required for durability or safety reasons, the box pairs with two GDF002F 3-4 gang grid mounting frames to support up to 8 modular grid positions, or with GDFP006M and GDFP008M metalclad faceplates. The 44mm depth provides clearance for switch and socket mechanisms, cable terminations and grid module back boxes without crowding the internal space.\u003c\/p\u003e\n\u003cp\u003eThe box is pressed from premium grade steel with an IP20 rating for indoor use, and includes a fixed earth terminal for bonding the metalwork to the circuit protective conductor. Pre-punched knockouts on all four sides allow cable entry from any direction, and the box edges are rolled to minimise sharp corners. The 25-year warranty reflects the expected lifespan of the steel construction in typical commercial and light industrial settings.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e138 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e138 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth\u003c\/td\u003e\n\u003ctd\u003e44 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003ePremium grade steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2201330_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat faceplates and frames does this box support?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe box accepts two GDF002F 3-4 gang grid mounting frames to hold 6-8 modular grid positions, or the GDFP006M and GDFP008M metalclad faceplates. These components are sold separately.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used outdoors?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The IP20 rating is for indoor dry locations only. For outdoor or wet environments, a higher IP-rated enclosure is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere are the cable entry points?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe box has pre-punched knockouts on all four sides, allowing cable entry from the top, bottom, left or right depending on the cable run direction.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the earth terminal suitable for connecting multiple circuits?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The fixed earth terminal inside the box allows bonding of the steel enclosure and connection of circuit protective conductors from multiple grid modules or circuits within the box.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293880705291,"sku":"GDSG68M","price":5.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/155666_63dca198-5272-4090-a346-5f262474c224.jpg?v=1714665449"},{"product_id":"2-gang-25mm-galvanised-steel-extension-box","title":"2 Gang 25mm Galvanised Steel Extension Box","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge 2-gang 25mm galvanised steel extension box adds depth to flush-mounted wall boxes that have been sunk too deeply into plasterwork or need additional space to accommodate thicker wiring accessories. The box is fabricated from 1.0mm galvanised steel sheet and measures 132mm wide by 72mm high, matching the standard footprint of 2-gang UK back boxes.\u003c\/p\u003e\n\u003cp\u003eDesigned for residential and commercial electrical installations, the extension box sits between the flush back box and the faceplate, raising the mounting lugs by 25mm to bring them closer to the finished wall surface. This is common when a plasterer has set a back box too deep, when insulation has been added behind plasterboard, or when a deeper accessory such as a dimmer module or USB socket won't fit the original box depth. The single adjustable lug allows the faceplate to be levelled during fitting, and the multiple 20mm knockouts on all four sides provide cable entry points for surface conduit runs or additional cables that couldn't fit the original box.\u003c\/p\u003e\n\u003cp\u003eThe galvanised finish resists corrosion in damp wall cavities and provides a good earth continuity path through the steel frame. An earth terminal is fitted to the side of the box for bonding the earthing conductor. The 25mm depth is the most common extension size for correcting over-deep installations without protruding excessively from the wall — stacking multiple extension boxes is possible where greater depth is needed but check load ratings before doing so.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\" style=\"width: 100%; height: 117.6px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 63.8799%; height: 19.6px;\"\u003eHeight\u003c\/td\u003e\n\u003ctd style=\"width: 33.6381%; height: 19.6px;\"\u003e72 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 63.8799%; height: 19.6px;\"\u003eWidth\u003c\/td\u003e\n\u003ctd style=\"width: 33.6381%; height: 19.6px;\"\u003e132 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 63.8799%; height: 19.6px;\"\u003eRecessed Depth\u003c\/td\u003e\n\u003ctd style=\"width: 33.6381%; height: 19.6px;\"\u003e25 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 63.8799%; height: 19.6px;\"\u003eConstruction\u003c\/td\u003e\n\u003ctd style=\"width: 33.6381%; height: 19.6px;\"\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 63.8799%; height: 19.6px;\"\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd style=\"width: 33.6381%; height: 19.6px;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 63.8799%; height: 19.6px;\"\u003eWarranty\u003c\/td\u003e\n\u003ctd style=\"width: 33.6381%; height: 19.6px;\"\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2796140_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhen would I need an extension box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eExtension boxes are used when a flush back box has been sunk too deeply into the wall during first-fix, when insulation or plasterboard has been added over an existing box reducing its effective depth, or when a new deeper accessory such as a dimmer or USB socket won't fit the original box. The extension box raises the mounting lugs by 25mm to bring them closer to the finished wall surface.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I stack multiple extension boxes?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, multiple extension boxes can be stacked to achieve greater depth, but check that the total weight of the extended box plus the accessory does not exceed safe loading for the original back box fixing. Heavy accessories on deeply extended boxes may require additional support.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the box include an earth terminal?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. An earth terminal is fitted to the side of the box for bonding the main earthing conductor, ensuring continuity through the galvanised steel frame.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the 20mm knockouts for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe knockouts on all four sides allow cable entry from surface conduit runs or additional cables that couldn't fit through the original back box. Standard 20mm conduit fittings and grommets fit the knockouts once removed.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293881721099,"sku":"GSE225","price":1.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/177358_47936ada-2293-4357-a1f5-3c11ff382ed4.jpg?v=1714665469"},{"product_id":"1-gang-25mm-galvanised-steel-extension-box","title":"1 Gang 25mm Galvanised Steel Extension Box","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge GSE25 is a 1-gang 25mm galvanised steel extension box designed to add depth to existing flush-mounted back boxes when deeper accessories are being fitted or when a back box has been recessed too far into the wall. The box measures 72mm x 72mm to match standard single-gang back boxes and adds 25mm of usable depth. It's constructed from 1.0mm thick galvanised steel with an earth terminal and one adjustable mounting lug.\u003c\/p\u003e\n\u003cp\u003eUsed in residential, commercial and industrial electrical installations, the extension box accommodates switches, sockets and other accessories that exceed the depth capacity of a standard 25mm back box. Multiple 20mm knockouts on each side allow cables to enter from any direction, giving flexibility in routing cable runs without drilling additional holes. The adjustable lug provides fine-tuning of the faceplate position once the box is fitted.\u003c\/p\u003e\n\u003cp\u003eGalvanisation provides corrosion resistance in damp environments or outdoor-sheltered locations where the box is protected from direct water ingress. The 1.0mm steel gauge gives rigidity under load, preventing the box from flexing when deep accessories are screwed into the mounting lug. The earth terminal connects the metal box to the circuit earth, maintaining electrical safety where metal faceplates are used.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e72 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e72 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecessed Depth\u003c\/td\u003e\n\u003ctd\u003e25 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2796137_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhen would I need an extension box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eExtension boxes are used when fitting deeper electrical accessories into existing back boxes, when a back box has been recessed too far into the wall during plastering, or when cable routing requires additional internal space behind the accessory. They add 25mm of depth without chasing out more wall.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it fit standard back boxes?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The 72mm x 72mm footprint matches standard single-gang UK back boxes. The extension box sits over the existing back box and is fixed to the wall surface or plasterboard, not to the recessed box itself.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is it earthed?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe box includes an earth terminal. Connect the circuit earth cable to this terminal to earth the metal box, which is required under UK wiring regulations when metal faceplates or accessories are used.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used outdoors?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe galvanised steel provides corrosion resistance suitable for sheltered outdoor locations where the box is protected from direct rain. It is not rated for full outdoor exposure without additional weatherproof housing.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293881753867,"sku":"GSE25","price":1.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/177356_7970f524-90f9-4133-a518-c0eb17bc7af4.jpg?v=1714665471"},{"product_id":"knightsbridge-1-gang-16mm-galvanised-steel-back-box","title":"Knightsbridge 1 Gang 16mm Galvanised Steel Back Box","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge 1-gang 16mm galvanised steel back box is a 73mm square flush-mounting enclosure designed for single switches, sockets and other 1-gang electrical accessories in residential, commercial and industrial installations. The 16mm recessed depth makes it suitable for shallow wall cavities, partition walls and surface-mount applications where a slim profile is required.\u003c\/p\u003e\n\u003cp\u003eConstructed from 1mm galvanised steel, the box provides mechanical protection for wiring terminations and mounts behind the faceplate of switches and sockets. One mounting lug is fixed, the other adjustable, allowing the box to be levelled during installation on timber studs, plasterboard or masonry. The integral earth terminal connects protective earth continuity from incoming cable to outgoing accessories.\u003c\/p\u003e\n\u003cp\u003eOval knockouts on the side and rear panels accept standard 20mm conduit grommets and allow cable entry from multiple directions depending on the run. The galvanised steel finish resists corrosion in damp environments and provides a low-resistance earth path. The box meets EN 60670 standards for electrical accessory enclosures and carries a 25-year warranty.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e73 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e73 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecessed Depth\u003c\/td\u003e\n\u003ctd\u003e16 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2795596_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat wall depth is required to fit a 16mm back box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA minimum wall cavity or chased depth of 18-20mm is needed to accommodate the 16mm recessed depth plus a small clearance for cables behind the box. In solid walls, a 20-25mm chase is typical.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size accessories fit this back box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 73mm square footprint accepts all standard UK 1-gang switches, sockets, dimmers, cooker switches, shaver sockets and other single-gang accessories with 60.3mm mounting centres.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this be used in bathroom zones?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, subject to the accessory fitted and the specific zone location. The galvanised steel construction and earth terminal support safe installation in bathroom environments when paired with appropriate IP-rated accessories and compliant wiring methods.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the adjustable lug for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe adjustable mounting lug slides along a slot in the box, allowing the installer to align the box with off-centre stud positions or uneven masonry fixings without having to re-drill.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293881884939,"sku":"GSK16","price":1.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/177330_0e025988-544b-435d-aecf-4271928c58ad.jpg?v=1714665473"},{"product_id":"knightsbridge-2-gang-25mm-galvanised-steel-back-box","title":"Knightsbridge 2 Gang 25mm Galvanised Steel Back Box","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge 2-gang 25mm galvanised steel back box provides the recessed mounting housing for double-width electrical accessories including sockets, switches, dimmers and USB outlets. Pressed from 1mm galvanised steel sheet with a zinc coating for corrosion resistance, the box measures 132mm wide by 73mm high with a 25mm recess depth from the wall surface.\u003c\/p\u003e\n\u003cp\u003eDesigned for installation in masonry, stud walls and dry-lining partitions, the box includes one fixed mounting lug and one adjustable mounting lug to accommodate minor variations in stud spacing or plasterboard thickness. The earth terminal accepts a 2.5mm² conductor and provides a bonding point for metal faceplates and accessories. Multiple 20mm diameter knockouts on the sides and rear allow cable entry from any direction, with the unused knockouts remaining closed to prevent plaster ingress during installation.\u003c\/p\u003e\n\u003cp\u003eThe 25mm depth is the minimum standard for most UK socket and switch accessories, suitable where wall cavity depth is limited but sufficient space exists for the accessory back-plate and wiring connections. The galvanised finish prevents rust in damp environments including external walls, bathrooms and utility rooms where condensation may occur behind the wall lining. The box is EN 60670 compliant and carries a 25-year warranty against manufacturing defects.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e73 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e132 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecessed Depth\u003c\/td\u003e\n\u003ctd\u003e25 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2795615_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat accessories fit this back box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 2-gang 25mm depth accommodates most UK double-width sockets, switches, dimmers, USB outlets and data plates. Check the accessory manufacturer's specification for minimum back box depth before purchasing — some USB sockets and smart switches require 35mm or 47mm depth.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this be used in bathrooms?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The galvanised steel coating provides corrosion resistance in damp environments including bathrooms, provided the box is installed in a zone permitted by BS 7671 wiring regulations and the final accessory is appropriately rated for the zone.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow are the cable knockouts removed?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 20mm knockouts are scored into the metal and can be removed by tapping with a screwdriver or using knockout pliers. Remove only the knockouts needed for cable entry — leave unused knockouts in place to prevent plaster or debris entering the box during wall finishing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the adjustable mounting lug used for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe adjustable lug allows the box to be positioned accurately when stud spacing or plasterboard thickness varies slightly from standard. Loosen the lug, reposition it along the slot, then tighten once the box is aligned correctly in the wall cavity.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293881917707,"sku":"GSK225","price":1.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/177338_d17e3849-71a6-4b6b-b8b1-23166dfbc426.jpg?v=1714665476"},{"product_id":"2-gang-35mm-galvanised-steel-back-box","title":"2 Gang 35mm Galvanised Steel Back Box","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge 2-gang 35mm galvanised steel back box is a flush-mount electrical box manufactured from 1mm galvanised steel with a tolerance of +\/- 1%. The box measures 132mm x 73mm x 35mm deep and accepts standard UK 2-gang switches, sockets and dimmer modules that require a 35mm minimum back box depth.\u003c\/p\u003e\n\u003cp\u003eDesigned for residential, commercial and light industrial installation, the box fits between standard 400mm or 600mm stud centres in stud walls, or can be chased into masonry and plasterboard where a flush finish is required. One fixed mounting lug sits at the top of the box, while one adjustable mounting lug allows the installer to compensate for minor alignment variations when fixing accessories to the box face. The earth terminal accepts protective earth continuity bonding between metal accessories and the installation's main earthing conductor.\u003c\/p\u003e\n\u003cp\u003eThe galvanised steel construction provides corrosion resistance in damp environments such as kitchens, utility rooms and bathrooms (provided the box itself is not directly exposed to water ingress). Multiple knockouts are pre-formed around the perimeter in 20mm and 25mm sizes, allowing cable entry from sides, top or bottom depending on the cable run. The box is certified to EN 60670 standards and carries a 25-year warranty.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e73 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e132 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecessed Depth\u003c\/td\u003e\n\u003ctd\u003e35 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2795621_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat accessories fit this back box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAny standard UK 2-gang switch, socket or dimmer module designed for a 35mm minimum back box depth will fit. This includes standard 2-gang light switches, 2-gang 13A sockets, USB sockets and dimmer modules. The 132mm x 73mm aperture is the UK standard for 2-gang accessories.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat wall construction is this suitable for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe box fits stud walls between 400mm or 600mm centres, can be chased into masonry with a diamond cutter or SDS drill, and works in plasterboard installations using the mounting lugs to fix to noggins or direct plasterboard fixings. It is not suitable for surface mounting — that requires a different box type.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it need to be earthed?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The earth terminal must be connected to the installation's protective earth conductor. If the accessory being fitted is metal-fronted (e.g. a metal switch plate), that accessory's earth terminal should also bond to the back box earth terminal to maintain earth continuity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat knockout sizes are available?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe box has pre-formed knockouts in 20mm and 25mm sizes around the perimeter. These are removed by twisting out with pliers or a screwdriver, allowing conduit or cable glands to be fitted for cable entry.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293882278155,"sku":"GSK235","price":1.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/177340_1a976f2a-dbc4-4951-b104-003e17b0d439.jpg?v=1714665479"},{"product_id":"2-gang-35mm-dual-galvanised-steel-back-box","title":"2 Gang 35mm Dual Galvanised Steel Back Box","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge 2-gang 35mm dual galvanised steel back box is designed for mounting two single-gang wiring accessory plates side by side in a 1G + 1G configuration. Pressed from 1mm galvanised steel with a tolerance of +\/- 1%, the box provides a rigid mounting frame for switches, sockets or data faceplates where a double-gang plate cannot be used due to spacing or circuit requirements.\u003c\/p\u003e\n\u003cp\u003eThis box is used in residential, commercial and industrial installations where two separate circuits or accessories need to be mounted adjacently on the same wall — for example, a light switch next to a socket, or two sockets on different ring mains. The 35mm recessed depth suits standard plasterboard and dot-and-dab installations, while the 158mm overall width accommodates two 86 x 86mm plates with a small gap between them. Six fixed mounting lugs and two adjustable lugs provide multiple fixing points for horizontal or vertical mounting, and earth terminals on the box ensure safe earthing of metal faceplates.\u003c\/p\u003e\n\u003cp\u003eThe galvanised finish resists corrosion in damp or humid environments, making the box suitable for kitchens, utility rooms, garages and light commercial settings. Pre-punched 20mm knockouts on multiple faces allow cable entry from different directions, and the box complies with EN 60670 standards for UK electrical installations. The 1mm steel gauge provides structural rigidity without adding excessive depth to the wall recess.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e73 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e158 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecessed Depth\u003c\/td\u003e\n\u003ctd\u003e35 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2795705_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's the difference between a dual box and a 2-gang box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA dual box mounts two separate single-gang plates side by side (1G + 1G), whereas a 2-gang box mounts one double-width 2-gang plate. Dual boxes are used when two circuits need to be kept separate or when mixing different accessory types in adjacent positions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat depth of plasterboard or wall is needed?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 35mm recessed depth is designed for standard 12.5mm plasterboard on timber studs or 15mm dot-and-dab plasterboard on brick\/block walls. The box sits flush with the wall surface once the plaster or plasterboard is in place.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this box be chased into solid walls?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The box can be chased into brick, block or concrete walls provided the chase is cut to the correct dimensions (73mm height x 158mm width x 35mm depth) and the box is secured with screws or plaster.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size plates does it take?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe box accepts two standard 86 x 86mm single-gang plates mounted side by side. It is not compatible with double-gang plates or non-standard plate sizes.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293882310923,"sku":"GSK235D","price":1.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/177350_0ae12079-dbe3-4ef6-90d9-2c7f287d5b48.jpg?v=1714665481"},{"product_id":"2-gang-47mm-galvanised-steel-back-box-fixed-adjustable-lugs","title":"2 Gang 47mm Galvanised Steel Back Box - Fixed \u0026 Adjustable Lugs","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge 2-gang 47mm galvanised steel back box provides the deeper recess needed for modern wiring installations, thicker insulation cables, and accessories with larger terminals or connection blocks. Pressed from 1mm-thick galvanised steel, the box offers corrosion resistance for dry-lining, brick and block wall installations in residential, commercial and industrial settings.\u003c\/p\u003e\n\u003cp\u003eThe 47mm depth accommodates dual USB sockets, deep dimmer modules, smart home controls and other accessories that cannot fit in standard 25mm or 35mm boxes. One fixed and one adjustable mounting lug allow the box to be levelled during fitting, even where stud spacing or masonry fixing points are not perfectly aligned. The earth terminal provides a connection point for the earth conductor from the incoming cable and the earth fly-lead from the accessory.\u003c\/p\u003e\n\u003cp\u003ePre-formed knockouts in 20mm and 25mm sizes sit on all four sides of the box, giving multiple cable entry options depending on the cable run direction. The galvanised finish prevents rust in damp conditions during the build phase, though the box is intended for dry internal use once the wall is plastered or boarded. Compliant with EN 60670, the box meets the dimensional and safety standards required for UK electrical installation work.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e73 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e132 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecessed Depth\u003c\/td\u003e\n\u003ctd\u003e47 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2795624_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat accessories require a 47mm depth box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDual USB sockets, deep dimmer modules, smart home controls, fan isolator switches, shaver sockets and some RCD-protected sockets all benefit from or require the extra depth a 47mm box provides. Standard switches and sockets can also use this box where cable runs are particularly bulky.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this box be used in dot-and-dab plasterboard walls?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, provided there is sufficient clearance between the back of the plasterboard and the blockwork or brick substrate. The 47mm depth projects further into the wall cavity than standard 35mm boxes, so check the cavity depth before ordering. The adjustable lug helps compensate for slight variations in board position.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size knockouts does it have?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe box includes both 20mm and 25mm knockouts on all four sides, giving flexibility for different conduit sizes and cable entry directions. Knockouts are pre-formed and can be removed with a screwdriver or punch during installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the earth terminal mandatory to use?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe earth terminal provides a safe connection point for the circuit protective conductor (earth wire). While older metal boxes sometimes relied on the mounting screws for earthing continuity, using the dedicated terminal is best practice and required under current wiring regulations for metal enclosures.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293883031819,"sku":"GSK247","price":1.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/177342_359bf0b2-ecc9-46c2-89d1-4ead8b23d686.jpg?v=1714665483"},{"product_id":"1-gang-25mm-galvanised-steel-back-box","title":"1 Gang 25mm Galvanised Steel Back Box","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge GSK25 is a 1-gang galvanised steel back box with a 25mm recessed depth, designed to house switches, sockets and dimmers in residential, commercial and industrial installations. The box measures 73mm x 73mm at the face and is pressed from 1mm-thick galvanised steel, providing corrosion resistance and structural rigidity when fixed into masonry, plasterboard or dry-lining.\u003c\/p\u003e\n\u003cp\u003eThe box features one fixed mounting lug and one adjustable mounting lug, allowing the faceplate to be levelled even where the box sits slightly off-square in the wall. An integrated earth terminal provides a connection point for protective earth continuity, meeting UK wiring regulation requirements. Multiple 20mm knockouts on the sides and rear accept standard PVC conduit, flexible conduit or cable entries, giving flexibility for both surface-fed and back-fed wiring runs.\u003c\/p\u003e\n\u003cp\u003eThe 25mm depth suits installations where wall cavity space is limited, including single-skin blockwork, timber stud partitions with 12.5mm plasterboard, and retrofits into existing shallow chases. The galvanised finish protects the steel from oxidation in damp conditions during the construction phase and throughout the life of the installation. The box accepts all standard 1-gang switches, sockets and dimmers from Knightsbridge and other manufacturers using the 73mm x 73mm British Standard mounting pattern.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e73 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e73 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecessed Depth\u003c\/td\u003e\n\u003ctd\u003e25 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2795600_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat wall constructions suit a 25mm back box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 25mm depth works in single-skin blockwork, timber stud partitions with 12.5mm plasterboard, and shallow chases in solid walls where a deeper box cannot be accommodated. For dry-lining installations, ensure the plasterboard thickness plus the box depth does not exceed the available cavity space.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the mounting lugs adjustable?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOne lug is fixed and one is adjustable. The adjustable lug allows the faceplate to be levelled if the box is slightly off-square in the wall, which is common in retrofit installations or where the chase was cut by hand.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size knockouts does it have?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe box has 20mm knockouts on the sides and rear, accepting standard 20mm PVC conduit, flexible conduit or grommeted cable entries. Knockouts are punched out with a screwdriver or similar tool during installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the earth terminal compliant with UK wiring regulations?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The integrated earth terminal provides a connection point for protective earth continuity as required by BS 7671 (the IET Wiring Regulations). The galvanised steel construction provides an effective earth path when correctly bonded.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293883064587,"sku":"GSK25","price":1.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/177332_31374487-6f78-46e1-9cc2-326cf4b6871b.jpg?v=1714665487"},{"product_id":"knightsbridge-1-gang-27mm-architrave-galvanised-steel-back-box","title":"Knightsbridge 1 Gang 27mm Architrave Galvanised Steel Back Box","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge 1-gang 27mm architrave back box is a shallow galvanised steel enclosure designed for mounting electrical accessories in narrow wall spaces, doorframes and architrave positions where a standard 35mm or 47mm back box will not fit. The box is pressed from 1mm-thick galvanised steel and measures 73mm high by 27mm wide, with a 27mm recessed depth.\u003c\/p\u003e\n\u003cp\u003eArchitrave back boxes are typically installed in timber doorframes, on narrow walls between rooms, or in partition walls where stud depth is limited. The 27mm profile allows a socket or switch to sit flush with the wall surface while keeping the total installation depth below 30mm. The galvanised steel construction provides structural rigidity and earth continuity, with an integrated earth terminal fixed inside the box for connecting the earth conductor from the circuit cable to the faceplate earth.\u003c\/p\u003e\n\u003cp\u003eThe box features 16mm knockouts on the top and bottom faces for cable entry, allowing twin-and-earth or singles to be fed in from above or below depending on the cable route. The knockouts are pre-scored and can be removed with a screwdriver or punch. The galvanised finish resists corrosion in damp environments and provides a conductive surface for earthing. The box accepts standard UK 1-gang faceplates and accessory mounting lugs.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e73 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e27 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecessed Depth\u003c\/td\u003e\n\u003ctd\u003e27 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2795588_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's the difference between an architrave box and a standard back box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAn architrave box has a much shallower depth (27mm vs 35mm or 47mm) and is designed for installation in narrow wall spaces like doorframes where a standard back box would protrude too far or not fit at all. The trade-off is reduced internal volume for cable terminations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this fit in a standard timber doorframe?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. Most UK timber doorframes use 32mm or 44mm timber sections, so the 27mm recessed depth of this box will sit within the frame thickness. The box should be chased into the timber or mounted in a pre-cut aperture with the faceplate sitting flush with the architrave moulding.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it need an earth connection?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The box includes an integrated earth terminal for connecting the circuit earth conductor to the metal enclosure and onward to the faceplate earth terminal. This is a requirement under BS 7671 for metal back boxes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat cable size can the knockouts accept?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 16mm knockouts will accept standard UK twin-and-earth cable up to 2.5mm² or singles in 20mm conduit. For larger cables or multiple cable entries, the knockout may need enlarging with a file or step drill.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293883130123,"sku":"GSK27","price":1.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/177818_8c3eb586-6782-45b2-af13-44c71e4d7975.jpg?v=1714665489"},{"product_id":"3-gang-35mm-triple-galvanised-steel-back-box","title":"3 Gang 35mm Triple Galvanised Steel Back Box","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge 3-gang 35mm galvanised steel back box mounts three separate 1-gang wiring accessory plates side by side in a single continuous wall aperture. The box measures 244mm wide by 73mm high, with a 35mm recessed depth behind the wall surface, and is constructed from 1mm-thickness galvanised steel to EN 60670 standards.\u003c\/p\u003e\n\u003cp\u003eDesigned for residential and commercial installations where three separate switches, sockets or data plates need to be grouped together, the box accepts standard 86 x 86mm faceplates only. Six fixed mounting lugs provide screw-fixing points for the cover plates, while earth terminals on the back plate ensure continuity across all three outlets. Pre-formed 20mm knockouts on the sides and base allow cable entry from multiple directions without drilling.\u003c\/p\u003e\n\u003cp\u003eThe galvanised steel construction resists corrosion in plasterboard and brick cavity walls, and the 35mm depth accommodates standard switch mechanisms and socket terminals without requiring deeper recessing. The box ships bulk-packed in shrink-wrapped Knightsbridge trays, with a 25-year warranty covering material defects and construction failures.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e73 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e244 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecessed Depth\u003c\/td\u003e\n\u003ctd\u003e35 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2795629_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat plates does this box accept?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe box is designed for standard 86 x 86mm wiring accessory plates only. It will not accept larger grid plates or non-standard sizes. Each of the three positions accepts one 1-gang plate, giving configurations such as three separate light switches or a socket plus two data plates.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat depth of wall cavity is needed?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA minimum 35mm cavity depth is required to recess the box flush with the wall surface. On stud walls with 50mm studs or deeper brick walls this poses no issue, but shallow partition walls may need to be checked before cutting the aperture.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the knockouts removable?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The 20mm knockouts are pre-formed but not removed during manufacture. They can be punched out with a screwdriver or knockout tool during installation to allow cable entry. Any unused knockouts should remain in place to maintain the box integrity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the box include fixing screws?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. Wall fixings and screws are not included and must be sourced separately depending on the wall construction. The six mounting lugs on the box are threaded to accept M3.5 screws for attaching the cover plates.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293883457803,"sku":"GSK335","price":1.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/177346_4aa8105a-47ae-4699-b5d5-cee60c7e9cbc.jpg?v=1714665494"},{"product_id":"3-gang-35mm-single-double-galvanised-steel-back-box","title":"3 Gang 35mm Single + Double Galvanised Steel Back Box","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge 3-gang 35mm galvanised steel back box mounts two wiring accessory plates side-by-side in a single cut-out: one 1-gang plate (86 x 86mm) and one 2-gang plate (86 x 146mm). The box measures 220mm wide, 73mm high and recesses 35mm into the wall, providing sufficient internal space for standard cable runs and terminal connections behind both plates.\u003c\/p\u003e\n\u003cp\u003eDesigned for new-build and retrofit electrical installation in residential, commercial and light industrial settings, the box is manufactured from 1mm-thick galvanised steel to EN 60670, offering corrosion resistance and structural rigidity for plasterboard and masonry mounting. Four fixed mounting lugs provide secure fixing points, and the 20mm knockouts on all four sides accept standard conduit and cable entry.\u003c\/p\u003e\n\u003cp\u003eThe integrated earth terminals allow safe bonding of metal faceplates and accessories. The galvanised finish prevents rust in damp environments during first-fix installation before the wall is plastered and decorated. This box is compatible with standard 86 x 86mm and 86 x 146mm UK wiring accessory plates only — not oversized or non-standard plates.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e73 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e220 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecessed Depth\u003c\/td\u003e\n\u003ctd\u003e35 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2795702_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat plate sizes does this box accept?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis box accepts one 1-gang plate (86 x 86mm) and one 2-gang plate (86 x 146mm) mounted side-by-side. It is not compatible with oversized or non-standard UK plate dimensions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat wall thickness is needed?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe box recesses 35mm into the wall. For plasterboard installation, a minimum 35mm cavity depth is required behind the board. For masonry, a 35mm-deep chase must be cut to sit the box flush with the finished wall surface.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre earth terminals included?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The box includes integrated earth terminals for bonding metal faceplates and ensuring safe earthing of the accessories mounted in the box.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the knockouts for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 20mm knockouts on all four sides accept standard conduit and cable entry. Remove the knockout appropriate to your cable run direction during first-fix installation.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293883654411,"sku":"GSK335D","price":1.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/177348_0ab07e02-b3f2-4aff-8eb3-56a140e886fc.jpg?v=1714665496"},{"product_id":"1-gang-35mm-galvanised-steel-back-box","title":"1 Gang 35mm Galvanised Steel Back Box","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThis Knightsbridge 1-gang 35mm galvanised steel back box provides the recessed housing for a single-gang electrical accessory, measuring 73mm square with a 35mm recess depth. The box is pressed from 1mm-thickness galvanised steel, giving corrosion resistance in damp or condensation-prone environments where standard metal boxes may rust over time.\u003c\/p\u003e\n\u003cp\u003eDesigned for installation into masonry, plasterboard and timber stud walls, the box has one fixed mounting lug at the top and one adjustable lug at the bottom, allowing the faceplate fixing points to be aligned horizontally even when the box itself sits slightly off-square in the wall cavity. An integrated earth terminal inside the box provides a bonding point for the earth conductor. 20mm knockouts on the sides and rear accept standard conduit entries and cable glands.\u003c\/p\u003e\n\u003cp\u003eThe 35mm depth accommodates deeper devices such as dimmer modules, USB charging sockets, or installations where multiple cables terminate in the same box and additional space is needed behind the faceplate. The galvanised finish on the steel provides a zinc coating that protects the base metal from oxidation in kitchens, bathrooms, utility rooms and external covered installations where moisture ingress is a concern.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e73 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e73 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecessed Depth\u003c\/td\u003e\n\u003ctd\u003e35 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2795606_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's the difference between 25mm and 35mm back boxes?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA 25mm box is the standard depth for most single-gang switches and sockets. A 35mm box provides an extra 10mm of recess depth, which is needed for dimmer switches, USB sockets, smart switches, or installations where multiple cables terminate in the same box and additional clearance is required behind the faceplate.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this be used in bathrooms?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The galvanised steel finish provides corrosion resistance in damp environments. The box should still be installed in compliance with BS 7671 wiring regulations, which specify minimum distances from water sources and zoning requirements for bathroom electrical installations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size wall opening is needed?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe box measures 73mm square externally. A wall opening of approximately 75-76mm square is typically cut to allow the box to be recessed into the cavity with minimal gap around the edges, which is then filled during plastering or making good.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the lugs adjustable for levelling?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe top lug is fixed. The bottom lug is adjustable, allowing the faceplate fixing points to be aligned horizontally even when the box sits slightly off-square in the wall. This prevents faceplates from appearing tilted after installation.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293883719947,"sku":"GSK35","price":1.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/177334_2c24b63d-9d75-48bb-a8ff-b87bc0937de0.jpg?v=1714665499"},{"product_id":"1-gang-47mm-galvanised-steel-back-box","title":"1 Gang 47mm Galvanised Steel Back Box","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge 1-gang 47mm galvanised steel back box is a flush-mount enclosure for single-gang switches, sockets and dimmers in masonry and drywall installations. The 47mm depth accommodates deeper accessories or installations with additional cable volume, while the 73mm x 73mm faceplate aperture fits all standard UK single-gang accessories.\u003c\/p\u003e\n\u003cp\u003eConstructed from 1mm-thick galvanised steel with a zinc coating for corrosion resistance, the box provides rigid support for heavier accessories such as metal faceplates, USB sockets and dimmer modules. One fixed mounting lug and one adjustable lug allow the box to be positioned vertically or horizontally, and the adjustable lug compensates for minor misalignment during installation. An integrated earth terminal provides a secure connection point for the circuit protective conductor.\u003c\/p\u003e\n\u003cp\u003eThe box includes pre-formed 20mm and 25mm knockouts on all four sides, allowing conduit or cable entry from multiple directions without needing to drill or cut the steel. This flexibility suits both new installations and retrofit projects where cable routing is constrained. The galvanised finish resists oxidation in damp conditions, making the box suitable for bathrooms, kitchens and utility rooms where moisture exposure is higher than standard living spaces.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e73 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e73 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecessed Depth\u003c\/td\u003e\n\u003ctd\u003e47 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2795607_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat accessories fit this back box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAll standard UK single-gang switches, sockets, dimmers and data outlets with a 73mm x 73mm faceplate aperture fit this box. The 47mm depth provides clearance for deeper accessories such as USB sockets, WiFi switches and smart home modules.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used in bathrooms?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The galvanised steel construction provides corrosion resistance in damp environments. However, the accessories fitted to the box must carry the appropriate IP rating for the bathroom zone in which they are installed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow are the mounting lugs adjusted?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe fixed lug is welded to the box and cannot be moved. The adjustable lug slides within a slot on the opposite side of the box, allowing vertical or horizontal positioning to align with fixing centres in the wall. Once positioned, the lug is secured with a screw.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat cable entry sizes are available?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe box includes pre-formed 20mm and 25mm knockouts on all four sides. These are pressed into the steel and can be punched out with hand pressure or a light tap. Additional cable entries can be drilled if required.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293883916555,"sku":"GSK47","price":1.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/177336_474ee77c-c481-451b-9288-cccef2eea04e.jpg?v=1714665501"},{"product_id":"metal-clad-1-gang-back-box-44mm-deep","title":"Metal Clad 1 Gang Back Box - 44mm Deep","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThis Knightsbridge 1-gang metal clad back box provides a 78mm x 78mm mounting surface with 44mm internal depth, manufactured from powder-coated premium grade steel. The box includes an integral earth terminal and carries an IP20 rating for protection against solid objects over 12.5mm diameter, making it suitable for surface-mounted industrial, workshop and outdoor electrical installations where flush mounting is not practical.\u003c\/p\u003e\n\u003cp\u003eDesigned for pairing with metal clad switches, sockets and accessories, the back box surface-mounts to walls, timber posts and concrete surfaces using the four corner fixing points. The 44mm depth accommodates standard single-gang wiring requirements including cable entry knockouts on all four sides and a bottom cable entry. The powder-coated finish resists corrosion in workshop environments and under light weather exposure when paired with appropriately rated accessories.\u003c\/p\u003e\n\u003cp\u003eThe steel construction provides mechanical protection for wiring in high-traffic areas, garages, outbuildings and light industrial spaces where surface wiring is preferred over chased-in installation. The box ships empty without a faceplate — pair it with any Knightsbridge metal clad 1-gang accessory (switches, sockets, isolation switches) to complete the installation. The 25-year warranty covers the back box itself; faceplate warranty terms depend on the accessory fitted.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e78 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e78 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProjection\u003c\/td\u003e\n\u003ctd\u003e44 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003ePremium grade steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClass\u003c\/td\u003e\n\u003ctd\u003eI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNeon Indicator\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_1328790_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/manual_1287772.pdf\" target=\"_self\"\u003eProduct Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's the difference between a metal clad back box and a standard plastic back box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMetal clad back boxes surface-mount to the wall and provide mechanical protection for the wiring and accessory, making them suitable for workshops, garages and industrial spaces. Standard plastic back boxes are designed to be flush-mounted into plasterboard or masonry and sit hidden behind the wall surface.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this come with a faceplate or switch?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The back box is sold empty. Pair it with any Knightsbridge metal clad 1-gang accessory (switch, socket, isolation switch) to complete the installation. The accessory faceplate fits over this box and secures with the fixing points provided.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this be used outdoors?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe back box itself carries an IP20 rating, which provides protection against solid objects but not water ingress. For outdoor use, pair it with a metal clad accessory that carries a higher IP rating (IP65 or IP66) to provide weather protection to the front face and cable entries.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is it fixed to the wall?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe back box has four corner fixing points for screws or bolts. On masonry or brick, use wall plugs and screws. On timber, use wood screws directly. On metal surfaces, use self-tapping screws or bolts depending on the substrate thickness.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293902692619,"sku":"M8700","price":5.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/194496_aa95c355-8841-4397-8b22-131d3856f9ad.jpg?v=1714665915"},{"product_id":"metal-clad-2-gang-back-box-44mm","title":"Metal Clad 2 Gang Back Box - 44mm","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge M8900 is a 2-gang metal clad back box in powder-coated steel, measuring 138mm wide by 78mm high with a 44mm projection from the wall. The box provides a surface-mounted enclosure for switches, sockets and other double-gang accessories where flush installation into the wall is not possible or desirable, such as in workshops, garages, industrial settings and solid masonry walls.\u003c\/p\u003e\n\u003cp\u003eDesigned for residential and commercial applications, the box accommodates any standard 2-gang accessory and provides knockout points for cable entry on all sides. The powder-coated steel construction resists corrosion and impact damage better than plastic alternatives, making it suitable for high-traffic areas and environments where mechanical protection is needed. An integral earth terminal allows bonding to the main earthing system.\u003c\/p\u003e\n\u003cp\u003eThe IP20 rating confirms protection against solid objects larger than 12.5mm, suitable for indoor dry locations but not for outdoor or wet environments. The 44mm depth provides clearance for most standard accessories and wiring terminations without requiring deeper projection from the wall. The box comes empty — accessories are purchased separately and screwed to the front plate fixing points.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e78 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e138 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProjection\u003c\/td\u003e\n\u003ctd\u003e44 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003ePremium grade steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClass\u003c\/td\u003e\n\u003ctd\u003eI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNeon Indicator\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_1328795_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/manual_1287774.pdf\" target=\"_self\"\u003eProduct Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat accessories fit this box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAny standard 2-gang switch, socket or accessory designed for surface mounting will fit. The box provides fixing points for screwing the accessory faceplate directly to the front of the enclosure. Accessories are purchased separately.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this be used outdoors?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The IP20 rating is suitable for indoor dry locations only. For outdoor or wet environments, you need a weatherproof enclosure with IP55 or higher rating.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is the box fixed to the wall?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe rear of the box has pre-drilled mounting holes for screws. Mark the fixing positions, drill and plug the wall, then screw the box securely in place before running cables through the knockout points and fitting the accessory.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it include an earth terminal?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. An integral earth terminal inside the box allows bonding to the main earthing system, providing continuity between the metal enclosure and the protective earth conductor.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293902954763,"sku":"M8900","price":5.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/194498_8ec9179c-9b67-4c80-abfd-b0fb0913eb6f.jpg?v=1714665918"},{"product_id":"single-16mm-architrave-pattress-box-white","title":"Single 16mm Architrave Pattress Box - White","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge SN127P is a single-gang 16mm-depth architrave pattress box in white thermoset resin, designed for mounting wiring accessories in narrow wall spaces where a standard 25mm or 35mm back box will not fit. The 86mm x 33mm faceplate footprint suits architrave trim around doorframes, window reveals, and skirting-adjacent positions where wall depth is limited.\u003c\/p\u003e\n\u003cp\u003eThe box fits behind any single-gang Knightsbridge Square Edge (SN) series switch or socket, and is also compatible with general-purpose single-gang accessories from other manufacturers that share standard UK mounting centres. The 16mm internal depth accommodates basic single-gang wiring terminations without requiring the wall to be chased deeper than the surface plasterwork allows. An integral earth terminal provides safe grounding for metal faceplates.\u003c\/p\u003e\n\u003cp\u003eConstructed from thermoset resin rather than thermoplastic, the box resists deformation under heat and maintains dimensional stability when cables are dressed tightly inside. The white finish blends with standard white plaster or painted surfaces. The anti-microbial properties are third-party tested to ISO 22196:2011, making the box suitable for healthcare, hospitality and food-preparation environments where surface hygiene matters.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e86 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e33 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth\u003c\/td\u003e\n\u003ctd\u003e20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eThermoset resin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnti-Microbial Properties\u003c\/td\u003e\n\u003ctd\u003e3rd Party Tested to ISO 22196:2011\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2002105_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is an architrave pattress box used for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAn architrave pattress box is a shallow back box designed for mounting switches or sockets in narrow wall spaces where a standard-depth back box will not fit. Common applications include architrave trim around doorframes, window reveals, and positions close to skirting boards where wall depth is limited to surface plasterwork.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs 16mm deep enough for a switch or socket?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, for basic single-gang installations with standard cable runs. The 16mm internal depth accommodates the wiring terminations for a single-gang switch or socket without requiring the wall to be chased deeper. More complex wiring configurations or multiple cable entries may require a deeper box.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this compatible with other brands of wiring accessories?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The SN127P uses standard UK single-gang mounting centres and fits any single-gang accessory that matches those centres, not just Knightsbridge Square Edge products. Check the accessory faceplate dimensions match the 86mm x 33mm footprint.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the anti-microbial property mean?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe thermoset resin is treated to inhibit bacterial growth on the surface of the box. This property is third-party tested to ISO 22196:2011 and makes the box suitable for environments where surface hygiene is important, such as healthcare facilities, hospitality and food-preparation areas.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293959840011,"sku":"SN127P","price":1.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/159008_4dc4640a-62e3-436b-bf9b-6e2d28cf3020.jpg?v=1714666860"},{"product_id":"single-16mm-pattress-box-with-earth-terminal-white-square-edge","title":"Single 16mm Pattress Box With Earth Terminal - White Square Edge","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge SN1300 is a single-gang 16mm surface pattress box made from white thermoset resin with an integrated earth terminal. It provides a mounting platform for switches, sockets and other wiring accessories where flush mounting into the wall is not possible or practical, such as on solid walls, tiled surfaces, or temporary installations.\u003c\/p\u003e\n\u003cp\u003eDesigned primarily for use with Knightsbridge's Square Edge (SN) series of wiring accessories, the box also accepts standard single-gang faceplates from other ranges. The 16mm depth allows for adequate cable containment behind typical 13A sockets and light switches while keeping the overall wall projection to a minimum. The white finish blends with white faceplates and painted walls in residential, commercial and light industrial settings.\u003c\/p\u003e\n\u003cp\u003eThe thermoset resin construction resists impact and heat better than standard thermoplastic boxes, and the anti-microbial coating has been third-party tested to ISO 22196:2011 standard, making this box suitable for healthcare, hospitality and food-preparation environments where surface hygiene is a concern. The integrated earth terminal accepts standard earth conductors without needing a separate terminal block. The box measures 86mm square with a 21mm total depth including the rear fixing lugs.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e86 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e86 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth\u003c\/td\u003e\n\u003ctd\u003e21 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eThermoset resin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnti-Microbial Properties\u003c\/td\u003e\n\u003ctd\u003e3rd Party Tested to ISO 22196:2011\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2002088_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's the difference between a pattress box and a back box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA pattress box is a surface-mounted enclosure that sits on top of the wall, whereas a back box (also called a flush box) is recessed into the wall. Pattress boxes are used where cutting into the wall is not possible, such as on solid masonry, tiled surfaces, or in temporary installations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this box compatible with other brands of faceplates?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The 86mm square footprint and standard fixing centres mean this box accepts most single-gang UK faceplates, not just Knightsbridge's Square Edge series. However, the square edge profile is designed to align flush with the SN series for the cleanest finish.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the anti-microbial coating do?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe coating inhibits bacterial growth on the surface of the box, tested to ISO 22196:2011. This makes the box suitable for healthcare, hospitality and food-preparation environments where surface hygiene is a regulatory or practical concern.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is the box fixed to the wall?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe rear of the box has fixing lugs with screw holes for wall mounting. Standard wood screws are used for timber surfaces, wall plugs and screws for masonry. The box should be fixed securely before the faceplate is installed.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293959872779,"sku":"SN1300","price":1.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/158990_23449269-8ed1-4524-8cc9-0d0ccaac40f6.jpg?v=1714666862"},{"product_id":"single-25mm-pattress-box-square-edge-white","title":"Single 25mm Pattress Box Square Edge - White","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge SN1400 is a single-gang 25mm pattress box moulded from white thermoset resin with a square edge profile. The box measures 86mm x 86mm across the faceplate mounting points and projects 30mm from the wall, providing 25mm of internal depth for cable and terminal accommodation behind the accessory faceplate.\u003c\/p\u003e\n\u003cp\u003eDesigned for surface-mounting single-gang wiring accessories where flush mounting into plasterboard or masonry is not possible, the pattress box suits both residential retrofit and commercial installation. The square edge profile mates directly with Knightsbridge's Square Edge (SN) series of switches, sockets and connection units, giving a clean finish where the accessory plate meets the box edge. The box is also compatible with standard UK single-gang accessories from other manufacturers.\u003c\/p\u003e\n\u003cp\u003eThe thermoset resin construction resists impact, heat and UV degradation better than standard ABS plastic, and the white finish is moulded through the material rather than applied as a coating. The box has been tested to ISO 22196:2011 for anti-microbial properties and carries an IP20 rating for indoor dry-location use. Two brass threaded inserts accept M3.5 fixing screws for the accessory faceplate, and the rear of the box has multiple knock-out points for cable entry from any direction.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e86 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e86 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth\u003c\/td\u003e\n\u003ctd\u003e30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eThermoset resin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnti-Microbial Properties\u003c\/td\u003e\n\u003ctd\u003e3rd Party Tested to ISO 22196:2011\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2002093_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's the difference between a pattress box and a back box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA pattress box surface-mounts onto the wall and the accessory fixes to the front of it, leaving the box visible behind the faceplate edges. A back box sinks into the wall cavity so only the accessory faceplate is visible. This pattress box is used where flush mounting is not possible or not preferred.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this box need an earth terminal?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The box is non-metallic thermoset resin and does not require earthing. Earth continuity is maintained through the accessory's own earth terminal when metal faceplates are used.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it compatible with screwless plates?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. Knightsbridge screwless accessories use a separate metal sub-frame that fixes to the pattress box with screws, and the cover plate clips onto that sub-frame. This box accepts both screw-fixed and screwless accessories in the SN range.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow many cables can fit inside?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 25mm internal depth accommodates typical UK twin-and-earth cable runs for single accessories. For accessories drawing high current or needing multiple cable terminations, a 35mm or 47mm deeper box may be required to avoid cable compression.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293960462603,"sku":"SN1400","price":1.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/158992_e9efd3d1-b786-48b2-a151-252ff3aa189c.jpg?v=1714666878"},{"product_id":"single-47mm-pattress-box-with-earth-terminal-white","title":"Single 47mm Pattress Box With Earth Terminal - White","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge SN1610 is a 47mm-deep single-gang surface-mount pattress box moulded from white thermoset resin with an integrated earth terminal and cable strain relief clamps. The box measures 86x86mm on the faceplate footprint and projects 52mm from the wall when fitted, providing 47mm internal depth for switch or socket back boxes.\u003c\/p\u003e\n\u003cp\u003eDesigned for surface installation where flush mounting into walls is impractical or prohibited, the pattress box suits solid walls, tiled surfaces, skirting runs and retrofit installations in listed buildings or rented properties. It pairs with the Knightsbridge Square Edge (SN) series of switches and sockets, though it accepts any single-gang accessory with standard UK fixing centres. The integrated earth terminal and cable strain relief meet BS EN 60670 standards for accessory boxes.\u003c\/p\u003e\n\u003cp\u003eThe white thermoset resin is tougher than PVC and retains its shape under load and temperature variation. Knightsbridge has tested the material to ISO 22196:2011 for anti-microbial properties, making it suitable for healthcare, education and food-preparation environments where hygiene standards apply. The box carries an IP20 rating for indoor dry-location use and comes with a 25-year warranty against material defects.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e86 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e86 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth\u003c\/td\u003e\n\u003ctd\u003e52 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eThermoset resin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnti-Microbial Properties\u003c\/td\u003e\n\u003ctd\u003e3rd Party Tested to ISO 22196:2011\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2002100_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is a pattress box used for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA pattress box is a surface-mount housing for electrical switches and sockets where cutting into the wall for a flush back box is impractical. This 47mm-deep box suits standard single-gang accessories and provides space for cable terminations behind the faceplate.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this compatible with all Knightsbridge switches and sockets?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The SN1610 accepts any Knightsbridge single-gang accessory with standard UK fixing centres, including the Square Edge (SN) series, and is also compatible with other brands' single-gang switches and sockets that use the same mounting dimensions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it include the cable strain relief?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The box has integrated cable strain relief clamps moulded into the back panel to secure incoming cables and prevent tension being transferred to the terminal connections.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the anti-microbial certification mean?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKnightsbridge has tested the thermoset resin to ISO 22196:2011, confirming that the material inhibits bacterial growth on its surface. This makes the box suitable for environments where hygiene is regulated, such as hospitals, schools and commercial kitchens.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293961019659,"sku":"SN1610","price":1.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/159000_d27316ca-0778-4c79-b3d8-455a1b4d66a2.jpg?v=1714666889"},{"product_id":"knightsbridge-35mm-single-pattress-box-with-earth-terminal-white-square-edge","title":"Knightsbridge 35mm Single Pattress Box with Earth Terminal - White Square Edge","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge SN1700 is a 35mm single pattress box moulded from white thermoset resin with an integrated earth terminal and fixing lugs. The 86x86mm faceplate footprint matches the standard UK single-gang size, and the 40mm overall depth provides 35mm of cable space behind the accessory faceplate once fitted. The box fits cavity walls, stud partitions and solid walls with appropriate chasing.\u003c\/p\u003e\n\u003cp\u003eDesigned primarily for use with Knightsbridge Square Edge (SN) series accessories, the SN1700 also accepts any standard UK single-gang socket, switch or dimmer that requires a 35mm back box depth. The earth terminal provides a termination point for protective earth conductors without needing a separate connector block. The square-edge profile sits flush with plasterboard and plaster finishes, reducing visible gaps between the wall surface and the accessory plate.\u003c\/p\u003e\n\u003cp\u003eThe thermoset resin construction resists impact better than standard thermoplastic boxes and carries third-party tested anti-microbial properties to ISO 22196:2011, reducing bacterial growth on the surface. The IP20 rating suits dry indoor locations including living rooms, bedrooms, offices and hallways. Knightsbridge backs the box with a 25-year warranty covering material and manufacturing defects.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e86 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e86 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth\u003c\/td\u003e\n\u003ctd\u003e40 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eThermoset resin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnti-Microbial Properties\u003c\/td\u003e\n\u003ctd\u003e3rd Party Tested to ISO 22196:2011\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2002101_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's the difference between 35mm and 25mm pattress boxes?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 35mm depth provides more cable space behind the accessory plate, making wiring easier on complex installations or where multiple cables enter the box. The 25mm depth is shallower and suits simple single-cable runs where wall depth is limited.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit standard UK single-gang accessories?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The 86x86mm faceplate footprint is the standard UK single-gang size. Any socket, switch or dimmer designed for UK single-gang installation will fit this box, not just Knightsbridge Square Edge accessories.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is thermoset resin and why does it matter?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThermoset resin is harder and more impact-resistant than standard thermoplastic (the material used in most budget back boxes). It resists cracking during installation and maintains shape under load, reducing movement behind the faceplate over time.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere can this be installed under IP20 rating?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIP20 means the box is suitable for dry indoor locations only. It cannot be used in bathrooms within zones 1 or 2, outdoors, or anywhere moisture or direct water contact is expected.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293961347339,"sku":"SN1700","price":1.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/159004_57011c65-9e1c-42e1-8083-1372a00e2caa.jpg?v=1714666891"},{"product_id":"35mm-single-double-dry-lining-box-white","title":"35mm Single \u0026 Double Dry Lining Box - White","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge SN8335D is a white PVC dry lining box designed for mounting electrical accessories into plasterboard cavity walls. The 35mm recessed depth accommodates a single or double gang socket or switch, with fixing lugs that grip the reverse of the plasterboard during installation. Two 20mm knock-outs at the rear allow conduit entry, while cable entry channels at the top and bottom accept cables from above or below.\u003c\/p\u003e\n\u003cp\u003eDesigned for residential and light commercial installation where electrical accessories need to be mounted into stud walls or partition walls with plasterboard facing. The box is fitted by cutting a 220x73mm aperture in the plasterboard, inserting the box from the front, and tightening the fixing screws to draw the lugs tight against the back of the board. Once installed, the box provides a rigid fixing point for the electrical accessory and prevents the accessory from pushing back into the cavity under repeated use.\u003c\/p\u003e\n\u003cp\u003eThe white PVC construction resists impact during installation and does not corrode in damp cavity environments. The 35mm depth fits cavity walls with at least 40mm clearance between the plasterboard face and the solid wall or insulation behind. BS 5733 certification confirms compliance with UK standards for electrical accessory boxes. The box is supplied in shrink-sealed Knightsbridge multipacks and carries a 25-year warranty.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e83 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e229 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecessed Depth\u003c\/td\u003e\n\u003ctd\u003e35 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCut-out Box W\/H\/D\u003c\/td\u003e\n\u003ctd\u003e220x73 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003ePVC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2002312_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size aperture do I need to cut in the plasterboard?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe cut-out dimension is 220x73mm. Mark and cut this aperture in the plasterboard before inserting the box from the front.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the box fix to the plasterboard?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe box uses metal fixing lugs with screw adjustment. When the fixing screws are tightened, the lugs draw tight against the reverse face of the plasterboard, gripping the board between the lugs and the front edge of the box.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat depth of cavity wall is needed?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 35mm recessed depth requires at least 40mm clearance between the plasterboard face and any solid wall or insulation behind it to allow the box to fit fully into the cavity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan cables enter from above and below?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. Cable entry channels are moulded into the top and bottom edges of the box, allowing cables to be run vertically from either direction. The two 20mm knock-outs at the rear accommodate conduit if required.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293975208203,"sku":"SN8335D","price":1.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/159012_454c7865-1cf4-4449-997b-0a5f2c1940b5.jpg?v=1714667022"},{"product_id":"35mm-single-dry-lining-box-white","title":"35mm Single Dry Lining Box - White","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge 35mm single dry lining box is a white PVC mounting box designed for installing electrical accessories into plasterboard and dry-lined cavity walls. The 35mm recessed depth provides clearance for standard switch and socket mechanisms behind the faceplate, while the moulded lugs on each side grip the plasterboard during installation.\u003c\/p\u003e\n\u003cp\u003eSuitable for both new-build and retrofit electrical work, the box accepts single-gang faceplates from Knightsbridge and other manufacturers. The 73mm x 73mm cut-out dimensions match standard UK single-gang switch and socket footprints. Cable entry channels at top and bottom allow wiring to run vertically through stud walls, and a 20mm knock-out at the rear provides additional cable entry from behind the wall cavity when needed.\u003c\/p\u003e\n\u003cp\u003eThe white PVC construction resists cracking during installation and gives a clean finish behind white or light-coloured faceplates. The box carries BS 5733 certification for dry lining boxes and includes a 25-year manufacturer warranty. Knightsbridge supplies these boxes in shrink-sealed multipacks for trade installation projects.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e83 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e83 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecessed Depth\u003c\/td\u003e\n\u003ctd\u003e35 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCut-out Box W\/H\/D\u003c\/td\u003e\n\u003ctd\u003e73x73 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003ePVC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2002318_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat wall thickness does this box suit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 35mm recessed depth is designed for standard 12.5mm plasterboard fixed to timber or metal stud frames. The box sits flush with the plasterboard surface once the moulded lugs are tightened against the back of the board.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is the box secured in the plasterboard?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTwo red adjustable lugs on opposite sides of the box are tightened with a screwdriver once the box is inserted through the cut-out. The lugs pull against the back of the plasterboard, clamping the box in place without additional fixings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size hole do I cut for installation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe cut-out size is 73mm x 73mm. This can be marked and cut with a pad saw, jab saw or dry lining cutter before inserting the box through the hole.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it suitable for sockets and switches?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The 35mm depth provides clearance for standard single-gang switch and socket mechanisms. The box accepts any single-gang faceplate with fixing lugs set at the standard 60.3mm centres.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293976813835,"sku":"SN8370","price":1.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/159014_fce79815-4b72-4b99-a182-74fee0e175b0.jpg?v=1714667039"},{"product_id":"34mm-round-dry-lining-box-white-pvc","title":"34mm Round Dry Lining Box - White PVC","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge 34mm round dry lining box is a white PVC housing designed for mounting downlights, smoke alarms and other electrical fittings into dry-lined cavity ceilings. The box has a 79mm outer diameter, a 34mm recessed depth and requires a 62mm cut-out in the plasterboard. Two 20mm knockouts at the rear allow cable entry from different angles depending on the routing.\u003c\/p\u003e\n\u003cp\u003eDesigned for residential and commercial installations where ceiling fittings need to be recessed into plasterboard backed by a cavity (typically 50-100mm air gap or insulation before the structural ceiling), the box provides fire containment and cable protection behind the visible fitting. The spring-loaded side tabs grip the rear face of the plasterboard when pushed through the 62mm hole, holding the box in place without additional fixings.\u003c\/p\u003e\n\u003cp\u003eThe white PVC construction is certified to BS 5733, the British Standard for general purpose electrical boxes and enclosures. The 34mm depth suits most LED downlights, GU10 fire-rated downlights and mains-powered smoke alarms that specify a shallow mounting depth. The box is supplied in shrink-sealed Knightsbridge multipacks.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e79 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecessed Depth\u003c\/td\u003e\n\u003ctd\u003e34 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCut-out Diameter\u003c\/td\u003e\n\u003ctd\u003e62 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003ePVC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2002319_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat ceiling depth is required?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe box needs a minimum 34mm cavity depth between the plasterboard and the structural ceiling above. Most standard UK dry-lined ceilings provide 50-100mm cavity, so the 34mm box fits comfortably with room for cable routing and insulation clearance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is the box fitted?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCut a 62mm hole in the plasterboard at the fitting location. Feed the cable through one of the rear knockouts, then push the box up through the hole from below. The spring-loaded side tabs will grip the back of the plasterboard and hold the box in place without screws or additional fixings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat fittings does it suit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 34mm depth suits most LED downlights, GU10 fire-rated downlights and mains-powered smoke alarms. Check the specific fitting's required mounting depth before ordering — some larger halogen downlights or adjustable spotlights may need a deeper box.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it certified for fire protection?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe box is certified to BS 5733 for general electrical enclosures. For fire-rated ceiling assemblies, pair the box with fire-rated downlights that carry their own fire certification (typically 30, 60 or 90 minutes).\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293977403659,"sku":"SN8375","price":1.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/159016_9fb35611-2eeb-4cd7-a5dc-89004636e9c8.jpg?v=1714667041"},{"product_id":"35mm-double-dry-lining-box-white-pvc","title":"35mm Double Dry Lining Box - White PVC","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge SN8380 is a 35mm-deep double dry lining box moulded in white PVC, designed for flush-mounting electrical accessories into plasterboard and dry-lined cavity walls. The box measures 144mm wide by 83mm high externally, requiring a 133x73mm rectangular cut-out in the plasterboard, and provides a 35mm recessed depth behind the wall surface for wiring and accessory back boxes.\u003c\/p\u003e\n\u003cp\u003eUsed during first-fix electrical installation in new builds and renovations, the box accepts standard UK double-gang switches, sockets and faceplates once the plasterboard is in place. Red locking lugs on each side grip the reverse of the plasterboard when tightened, pulling the front flange tight to the wall surface and holding the box securely without needing screws into studs or additional fixings. Cable entry channels moulded into the top and bottom edges guide twin-and-earth or conduit into the box, and a 20mm knock-out at the rear accepts standard PVC conduit where needed.\u003c\/p\u003e\n\u003cp\u003eThe box is certified to BS 5733, the British Standard for general purpose thermoplastic enclosures for electrical accessories. The white PVC construction is non-conductive, resists impact during installation, and remains stable in typical domestic wall cavity temperatures. Knightsbridge supplies the box in shrink-sealed multipacks for trade and contractor use, with each unit carrying a 25-year warranty against manufacturing defects.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e83 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e144 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecessed Depth\u003c\/td\u003e\n\u003ctd\u003e35 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCut-out Box W\/H\/D\u003c\/td\u003e\n\u003ctd\u003e133x73 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003ePVC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2002320_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat plasterboard thickness does this box suit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 35mm recessed depth suits standard 12.5mm plasterboard with 20-25mm of space behind for cable management. The locking lugs adjust to grip plasterboard between 9mm and 15mm thickness.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is the box secured to the wall?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRed locking lugs on each side of the box screw inward to grip the reverse of the plasterboard. As they tighten, they pull the front flange of the box tight to the wall surface, holding it securely without needing screws into studs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat accessories fit this box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe box accepts any standard UK double-gang electrical accessory, including switches, sockets, dimmer modules, TV\/data plates and USB charging sockets. The 133x73mm cut-out matches the standard double-gang footprint.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the 20mm knock-out pre-cut?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The knock-out at the rear is moulded into the PVC but remains intact until needed. It can be knocked out with a screwdriver or punch to accept 20mm PVC conduit where cable management requires it.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293977436427,"sku":"SN8380","price":1.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/159018_0b477baa-d258-4fbc-a905-0f25a7ba39a4.jpg?v=1714667043"},{"product_id":"35mm-dual-dry-lining-box-white-pvc","title":"35mm Dual Dry Lining Box - White PVC","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge SN8380D is a 35mm deep dual dry lining box designed for mounting 2-gang electrical accessories into plasterboard and cavity walls. The white PVC box measures 169mm wide by 83mm high externally, with a 159x73mm cut-out requirement in the plasterboard. Two red spring-loaded grip flanges clamp the box securely to the reverse side of the plasterboard once pushed through the cut-out aperture.\u003c\/p\u003e\n\u003cp\u003eDesigned for residential and light commercial installations where 2-gang switches, sockets or dimmer plates are being fitted into stud walls, the box accepts standard UK wiring accessories without requiring additional back boxes. Two 20mm knockouts at the rear provide cable entry points, while moulded channels at the top and bottom edges guide cables neatly into position during installation. The 35mm depth accommodates most standard accessories and provides enough space for cable terminations behind deeper switches and dimmers.\u003c\/p\u003e\n\u003cp\u003eThe PVC construction is certified to BS 5733, the UK standard for electrical accessory boxes in non-metallic enclosures. The white finish blends with standard white plasterboard once the faceplate is fitted. The box ships in shrink-sealed Knightsbridge multipacks, with each unit individually protected during storage and transit. The 25-year warranty covers manufacturing defects and material failure under normal domestic use.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e83 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e169 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecessed Depth\u003c\/td\u003e\n\u003ctd\u003e35 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCut-out Box W\/H\/D\u003c\/td\u003e\n\u003ctd\u003e159x73 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003ePVC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2002322_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat plasterboard thickness does this box support?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe spring-loaded grip flanges accommodate standard UK plasterboard thicknesses from 9.5mm to 12.5mm. The flanges clamp against the reverse side of the plasterboard once the box is pushed through the cut-out aperture.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size cut-out is required?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe plasterboard requires a 159mm wide by 73mm high rectangular cut-out. Mark and cut the aperture with a padsaw or drywall saw before inserting the box.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this suitable for metal-clad accessories?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. This is a non-metallic PVC box certified to BS 5733 for use with standard plastic-backed switches and sockets. For metal-clad accessories a metal back box with earthing provision is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow are cables routed into the box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTwo 20mm knockouts at the rear provide cable entry points. Additional moulded channels at the top and bottom edges guide cables into position during installation. Cables can enter from above, below or directly from the rear depending on the stud wall cavity route.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293977731339,"sku":"SN8380D","price":1.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/159020_7282f69b-161f-443d-b9fe-a5c75e76198f.jpg?v=1714667045"},{"product_id":"47mm-single-dry-lining-box-white","title":"47mm Single Dry Lining Box - White","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge 47mm single dry lining box is a white PVC mounting box for installing switches, sockets and other electrical accessories into plasterboard cavity walls. The box sits behind the plasterboard with a 47mm recessed depth, providing clearance for standard switch and socket back plates without protruding into the cavity space.\u003c\/p\u003e\n\u003cp\u003eDesigned for new-build residential and commercial installations where walls are dry-lined with plasterboard over a timber or metal stud frame, the box fixes directly to the plasterboard using red plastic grip lugs that expand against the back of the board when the accessory is screwed in. The 83mm square face matches standard UK electrical accessory sizes, and the 73mm cut-out dimension allows the box to drop into a hole cut with a standard dry-lining saw or hole cutter.\u003c\/p\u003e\n\u003cp\u003eCable entry is accommodated by moulded channels at the top and bottom edges of the box, plus a 20mm knockout at the rear for direct conduit or cable runs through the cavity. The white PVC construction is certified to BS 5733, the British Standard for general purpose cable management boxes, and the box carries a 25-year warranty. The red grip lugs visible in the product image lock the box securely to plasterboard between 9.5mm and 12.5mm thick.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e83 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e83 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecessed Depth\u003c\/td\u003e\n\u003ctd\u003e47 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCut-out Box W\/H\/D\u003c\/td\u003e\n\u003ctd\u003e73x73 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003ePVC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2002324_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat plasterboard thickness does it suit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe grip lugs are designed for plasterboard between 9.5mm and 12.5mm thick, which covers standard UK residential plasterboard. Thicker or thinner boards may not provide a secure grip.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size hole is needed in the plasterboard?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA 73mm x 73mm square cut-out is required. This can be cut with a dry-lining saw, a hole cutter, or a jigsaw with a plasterboard blade. The box drops into the hole and the red lugs grip the back of the board when the accessory is screwed in.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it suitable for masonry walls?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. This box is designed specifically for dry-lined cavity walls with plasterboard over a stud frame. For masonry walls, use a metal or plastic pattress box fixed with wall plugs and screws.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow are cables fed into the box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCables can enter through moulded channels at the top and bottom edges of the box, or through the 20mm knockout at the rear for conduit runs or direct cable entry from the cavity.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293978288395,"sku":"SN8381","price":1.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/159022_0ee5cced-4fd4-4233-b349-497c3f09d5b7.jpg?v=1714667048"},{"product_id":"47mm-double-dry-lining-box-white-pvc","title":"47mm Double Dry Lining Box - White PVC","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge 47mm double dry lining box is a white PVC enclosure for mounting 2-gang switches, sockets and accessories into plasterboard cavity walls. The 47mm recessed depth sits flush behind standard 12.5mm plasterboard, with red plastic lugs that grip the back of the board to hold the box in place without needing to fix into studs or noggins.\u003c\/p\u003e\n\u003cp\u003eDesigned for residential, commercial and hospitality installations where electrical accessories need to be retrofitted into dry-lined walls, the box accepts standard 2-gang faceplates and provides cable entry channels at both top and bottom edges. A 20mm knock-out at the rear allows conduit entry from behind the wall plane. The 133x73mm cut-out dimensions match the aperture required for most 2-gang accessories, and the box sits recessed so that the faceplate finishes flush with the plasterboard surface.\u003c\/p\u003e\n\u003cp\u003eThe white PVC construction is impact-resistant and certified to BS 5733, the British Standard for general purpose enclosures for electrical accessories. The red lugs compress when the box is pushed into the wall aperture, then spring out behind the board to lock the box in position. Once installed, the box supports the weight of the accessory and provides a stable fixing point for the faceplate screws. Knightsbridge supplies these boxes in shrink-sealed multipacks for site use.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e83 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e144 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecessed Depth\u003c\/td\u003e\n\u003ctd\u003e47 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCut-out Box W\/H\/D\u003c\/td\u003e\n\u003ctd\u003e133x73 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003ePVC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2002325_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat plasterboard thickness does this box suit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 47mm recessed depth is designed for 12.5mm standard plasterboard. The box sits behind the board with the red lugs gripping the back face, leaving the front rim flush with the plasterboard surface for mounting the faceplate.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is the box secured in the wall?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe red plastic lugs on each side compress when the box is pushed into the 133x73mm wall aperture, then spring out behind the plasterboard to lock the box in place. No additional fixing to studs or noggins is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat accessories can be fitted to this box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAny standard 2-gang switch, socket, dimmer, or accessory with a compatible faceplate size. The box provides fixing points for standard faceplate screws and supports the weight of the installed accessory.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the box certified to British Standards?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The box is certified to BS 5733, the British Standard for general purpose enclosures for electrical accessories. The 25-year warranty covers material and manufacturing defects.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293978321163,"sku":"SN8382","price":1.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/159024_8ae3a0fa-e940-41f0-af30-396d3601025a.jpg?v=1714667050"},{"product_id":"esp-disabled-toilet-alarm-surface-mount-box-brushed-stainless-steel","title":"ESP Disabled Toilet Alarm Surface Mount Box - Brushed Stainless Steel","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe ESP UDTASMBSS is a 92mm square surface mount box in brushed stainless steel, designed to house disabled toilet assistance alarm call points and control modules. The box measures 92mm wide by 92mm high by 48mm deep, providing sufficient internal volume for the UDTAKITSS module range while keeping the wall projection minimal. Pre-drilled mounting holes on the rear panel allow secure fixing to plasterboard, masonry or tiled surfaces.\u003c\/p\u003e\n\u003cp\u003eDesigned for accessible WC installations in hospitals, care homes, offices and public buildings, the surface mount box provides an alternative to flush-mounting where cutting into wall structures is impractical or where the wall construction cannot accommodate a recessed back box. The brushed stainless steel finish matches the typical material specification for washroom fittings and resists corrosion in high-humidity environments. The box accepts standard ESP UDTAKITSS alarm modules, which include call point buttons, indicator panels and reset controls for assistance alarm systems.\u003c\/p\u003e\n\u003cp\u003eThe 48mm depth allows clearance for module wiring and terminal blocks without forcing cables into tight bends. The brushed finish on the stainless steel hides minor scuffs and fingerprints better than polished metal, maintaining appearance in high-traffic washroom environments. The box weighs 0.2kg net, making it straightforward to fix to hollow partition walls using appropriate cavity fixings where solid substrate is not available.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Net Weight (KG)\u003c\/td\u003e\n\u003ctd\u003e0.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Gross Weight (KG)\u003c\/td\u003e\n\u003ctd\u003e0.25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Gross Weight (KG)\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Length (mm)\u003c\/td\u003e\n\u003ctd\u003e92\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Width (mm)\u003c\/td\u003e\n\u003ctd\u003e92\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Height (mm)\u003c\/td\u003e\n\u003ctd\u003e48\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Length (mm)\u003c\/td\u003e\n\u003ctd\u003e485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Width (mm)\u003c\/td\u003e\n\u003ctd\u003e485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Height (mm)\u003c\/td\u003e\n\u003ctd\u003e120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_UDTASMBSS_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/manual_UDTASMBSS.pdf\" target=\"_blank\"\u003eProduct Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat modules is this box compatible with?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe box is designed for use with ESP UDTAKITSS disabled toilet assistance alarm modules, which include call point buttons, indicator panels and reset controls. The 92mm square aperture accepts the standard UDTAKITSS faceplate dimensions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used on tiled walls?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The rear panel has pre-drilled mounting holes for fixing to tiled surfaces using suitable wall plugs and screws. Drill through the tile at the marked positions, insert plugs into the substrate behind, and secure the box with the appropriate fixings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it suitable for outdoor use?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe brushed stainless steel construction resists corrosion and humidity, making it suitable for indoor washroom environments. For outdoor or fully exposed installations, confirm with ESP that the box carries an appropriate IP rating for your application.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat depth of wall space is needed?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe box projects 48mm from the wall surface once installed. Ensure there is sufficient clearance behind any adjacent fixtures (grab rails, toilet roll holders) to allow the module faceplate to sit flush with the box aperture.\u003c\/p\u003e","brand":"ESP","offers":[{"title":"Default Title","offer_id":45294091501835,"sku":"UDTASMBSS","price":14.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/UDTASMBSS_5de2d6bf-c718-43b6-ad5c-7cc7d9ded82a.jpg?v=1714667980"},{"product_id":"mercury-ip55-87mm-weatherproof-junction-box-white","title":"Mercury IP55 87mm Weatherproof Junction Box - White","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Mercury is an 87 x 87 x 48mm IP55-rated weatherproof junction box moulded from white polycarbonate with a hinged lid and rubber seal. The IP55 rating provides protection against dust ingress and low-pressure water jets from any direction, making it suitable for sheltered outdoor locations where electrical connections need protection from rain, moisture and airborne particles.\u003c\/p\u003e\n\u003cp\u003eDesigned for outdoor lighting installations, garden power circuits, CCTV camera feeds and external telecoms wiring, the Mercury accommodates terminal blocks, connectors and cable joints where they would otherwise be exposed to the elements. The box includes nine pre-formed M20 knockouts around the perimeter, allowing cables to be routed in from multiple directions without drilling custom entry points. Standard M20 cable glands thread into the knockouts to seal around the cable sheath.\u003c\/p\u003e\n\u003cp\u003eThe white polycarbonate housing resists impact and UV degradation better than ABS or PVC alternatives, maintaining structural integrity through freeze-thaw cycles and prolonged sunlight exposure. At 46g the box is light enough to be mounted on masonry, timber cladding or fence posts using external fixings through the rear mounting lugs. The hinged lid clicks shut over a continuous rubber gasket that compresses around the full perimeter to maintain the IP55 seal.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP rating\u003c\/td\u003e\n\u003ctd\u003eIP55\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e87 x 87 x 48mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e46g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eCan this be used in fully exposed outdoor locations?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe IP55 rating provides protection against low-pressure water jets, making it suitable for sheltered outdoor locations such as under eaves, in porch ceilings, or behind cladding. For fully exposed locations subject to driving rain or temporary immersion, a higher IP rating (IP65 or IP66) is recommended.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size cable glands fit the M20 knockouts?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe nine knockouts are sized for standard M20 cable glands, which typically accommodate cables between 6mm and 12mm diameter depending on the specific gland model. Cable glands are sold separately.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is the box mounted?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe rear panel has mounting lugs for external fixing screws. For masonry use appropriate wall plugs and corrosion-resistant screws; for timber use stainless or zinc-plated wood screws to prevent rust staining on the white housing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the box suitable for mains voltage connections?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Mercury provides mechanical and environmental protection for electrical connections but does not carry a voltage rating on its own. Connections inside must comply with BS 7671 wiring regulations, using appropriately rated terminal blocks or connectors for the circuit voltage and current.\u003c\/p\u003e","brand":"AVSL","offers":[{"title":"Default Title","offer_id":45313442382091,"sku":"429.920UK","price":1.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/429920UK_CO1_1f32596b-d9d4-4c0f-bb20-07be87a5027c.jpg?v=1715192996"},{"product_id":"mercury-1-gang-25mm-single-surface-back-box-white","title":"Mercury 1 Gang 25mm Single Surface Back Box - White","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Mercury 1-gang 25mm surface back box is a white moulded plastic housing designed to sit on the wall surface rather than being recessed, allowing switches, sockets and other single-gang faceplates to be fitted where flush installation is not possible. The box includes multiple moulded knockouts for cable entry from the top, bottom, sides and rear, and two brass fixing lugs for securing the faceplate.\u003c\/p\u003e\n\u003cp\u003eDesigned for residential, commercial and light industrial applications where surface wiring is the preferred or only option, the box suits solid walls where chasing out is impractical, surface-run conduit installations, workshops, garages and utility rooms. The 25mm depth accommodates standard switches and sockets without deep terminal blocks. The box mounts directly to the wall with screws through the rear base plate, or can be fixed to trunking or cable management systems.\u003c\/p\u003e\n\u003cp\u003eThe white finish blends with white walls and white faceplates for a low-profile appearance, though the box itself remains visible as a surface-mounted fitting. The moulded plastic construction is lightweight and resistant to impact, and the box carries BS EN60670-1 certification for use with standard UK electrical accessories rated up to 13A.\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is a surface box used for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA surface box sits on the wall surface rather than being recessed into it, allowing electrical faceplates to be fitted where cutting into the wall is not possible or desirable. Common applications include solid walls, tiled surfaces, workshops and garages.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat depth of faceplate does it take?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 25mm depth suits standard switches and sockets with shallow terminal blocks. Deep modules or those requiring more wiring space may need a 35mm or 47mm surface box instead.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow many cable entries does it have?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe box includes multiple moulded knockouts on the top, bottom, sides and rear. Knockouts are removed by pushing through with a screwdriver or knife where cable entry is needed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it compatible with screwless faceplates?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The box provides standard fixing lugs that accept both screw-fixed and screwless cover plates designed for single-gang mounting.\u003c\/p\u003e","brand":"AVSL","offers":[{"title":"Default Title","offer_id":45313443594507,"sku":"429.923UK","price":1.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/429923UK_CO1_f0611768-23fb-4eab-960a-8151e1a51c4b.jpg?v=1715192999"},{"product_id":"mercury-1-gang-47mm-surface-mount-back-box-white","title":"Mercury 1 Gang 47mm Surface Mount Back Box - White","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Mercury 47mm surface mount back box is a single-gang electrical enclosure designed to sit on the wall surface rather than being recessed into it. The white thermoplastic housing measures 47mm deep, providing space for deeper modules, terminal blocks, or additional cable runs behind standard UK electrical faceplates. Moulded knockouts on the sides and rear allow cable entry without drilling.\u003c\/p\u003e\n\u003cp\u003eDesigned for installation where chasing walls for flush-mount boxes is impractical or impossible, the surface box suits masonry walls, solid concrete, tiled surfaces, or dry-lined partitions where cutting out a recess would compromise structural integrity. The box accepts any standard single-gang faceplate — switches, sockets, dimmers, data outlets — and the 47mm depth accommodates deeper plates with integrated USB ports or control modules.\u003c\/p\u003e\n\u003cp\u003eThe box is manufactured to BS EN60670-1, the British and European standard for electrical accessory boxes. The white finish blends with white or light-coloured faceplates, and the thermoplastic housing provides electrical insulation and impact resistance. Brass fixing lugs inside the box align with standard single-gang faceplate screw centres at 60.3mm apart.\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is a surface mount box used for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA surface mount box sits on top of the wall rather than being recessed into it. It's used where cutting a recess is impractical — on tiled walls, solid concrete, thin partitions, or in retrofit installations where chasing walls would cause excessive disruption.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat faceplates are compatible with this box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAny standard UK single-gang faceplate with 60.3mm screw centres will fit. This includes switches, sockets, dimmers, TV\/data outlets, and USB charging faceplates. The 47mm depth accommodates deeper plates with integrated electronics.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do cables enter the box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe box has moulded knockouts on the sides and rear. Push through the knockout at the required entry point, and the cable feeds into the box through the resulting aperture. The knockouts eliminate the need to drill holes for cable entry.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the box need additional fixing to the wall?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The box is secured to the wall with screws through fixing holes moulded into the rear of the housing. Use appropriate fixings for the wall type — masonry plugs and screws for brick or concrete, plasterboard anchors for hollow walls.\u003c\/p\u003e","brand":"AVSL","offers":[{"title":"Default Title","offer_id":45313443692811,"sku":"429.925UK","price":1.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/429925UK_CO1_51513066-18ee-4348-8a43-7e0b14677ca0.jpg?v=1715193002"},{"product_id":"29mm-double-back-box-white","title":"29mm Double Back Box - White","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge 29mm double back box is a surface-mounted housing for 2-gang sockets or switches, built from high-impact PVC with a white finish. The 29mm recessed depth provides internal clearance for dual wiring runs while the 32.2mm total projection from the wall keeps the unit compact enough for skirting-adjacent installations.\u003c\/p\u003e\n\u003cp\u003eDesigned for commercial and residential projects where wall chasing is not practical, the box includes trunking knockouts at the top, bottom and centre positions to accept both square and circular conduit systems. The knockouts are pre-scored for clean removal without needing to drill through the PVC. The internal width of 146.3mm accommodates standard 2-gang faceplate fixing centres and leaves room for cable bends behind the terminals.\u003c\/p\u003e\n\u003cp\u003eThe PVC construction resists splintering when drilled or cut during installation, and the white finish integrates with white sockets, switches and skirting boards without needing to be painted. The box complies with BS 4662 and carries a 25-year manufacturer guarantee. The fixing lugs are moulded into the back panel rather than screwed on, reducing the risk of breakage when tightening faceplates.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e86.3mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e146.3mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProjection\u003c\/td\u003e\n\u003ctd\u003e32.2mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecessed Depth\u003c\/td\u003e\n\u003ctd\u003e29mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003ePVC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25 Year Guarantee\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/datasheet-SN1500P.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's the difference between recessed depth and projection?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRecessed depth (29mm) is the internal clearance for wiring. Projection (32.2mm) is the total distance the box stands out from the wall, including the rim that the faceplate screws into.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this suitable for outdoor use?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The box has no IP rating and is designed for internal surface mounting only. For outdoor or wet-area installations, use a weatherproof IP-rated enclosure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan trunking be connected on all sides?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The box has pre-scored trunking knockouts at the top, bottom and centre positions, compatible with both square and circular conduit systems. The knockouts can be removed cleanly without drilling.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it work with screwless faceplates?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt depends on the faceplate system. Some screwless designs require a specific metal sub-frame that may not fit surface-mounted back boxes. Check the faceplate manufacturer's compatibility guidance before ordering.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":51391669272843,"sku":"SN1500P","price":1.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/1831096_15f3c4f9-4ab3-4178-92eb-1fd478ca91f3.jpg?v=1747063309"},{"product_id":"29mm-single-back-box-white","title":"29mm Single Back Box - White","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge 29mm single back box is a surface-mounted PVC containment unit for single-gang switches and sockets. The white moulded housing measures 86.3mm square with a 32.2mm projection from the wall, providing 29mm of recessed depth for cable terminations and the back of the faceplate mechanism.\u003c\/p\u003e\n\u003cp\u003eBuilt from high-impact PVC rather than metal, the box can be drilled or cut without cracking, which is useful when running additional cable entries mid-installation or adapting the box for non-standard trunking routes. Pre-moulded square and circular knockouts on the top, bottom and centre allow conduit or trunking to enter from multiple directions without needing to modify the box body.\u003c\/p\u003e\n\u003cp\u003eDesigned for surface installation in residential, office and light commercial settings, the 29mm recessed depth accommodates standard single-pole or DP switches, 13A sockets and dimmer modules without forcing cable bunching behind the mechanism. The white finish blends with painted plasterboard or white dado trunking runs. The IP20 rating limits use to dry indoor locations away from water ingress.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e86.3mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e86.3mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth\u003c\/td\u003e\n\u003ctd\u003e32.2mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProjection\u003c\/td\u003e\n\u003ctd\u003e32.2mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecessed Depth\u003c\/td\u003e\n\u003ctd\u003e29mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003ePVC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25 Year Guarantee\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/datasheet-SN1400P.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's the difference between recessed depth and projection?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRecessed depth (29mm) is the internal space available for cable terminations and the back of the switch or socket mechanism. Projection (32.2mm) is the total distance the box stands out from the wall surface, including the PVC wall thickness.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this be used with screwless faceplates?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, but screwless faceplates typically require a separate metal sub-frame that fixes to the back box using lugs. Check that the sub-frame you're using is compatible with standard 86.3mm single-gang back boxes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat faceplates fit this back box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAny standard UK single-gang switch, socket or dimmer faceplate with the 86.3mm mounting centres will fit. This includes Knightsbridge, MK, Varilight, BG Electrical and other brands using the UK standard fixing spacing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the 29mm depth enough for USB sockets?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMost single-gang USB sockets need 35mm minimum back box depth to accommodate the USB charging module behind the faceplate. For USB sockets, use a deeper back box (35mm or 47mm) to avoid forcing cables and to allow the faceplate to sit flush.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":51391671107851,"sku":"SN1400P","price":1.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/1831120_df9c4d46-6f86-4337-8f49-78af911aed27.jpg?v=1747063313"},{"product_id":"47mm-galvanised-steel-back-box-for-multimedia-plates-single-cavity","title":"47mm Galvanised Steel Back Box for Multimedia Plates - Single Cavity","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge GSK298F is a 47mm-deep galvanised steel back box designed specifically for multimedia combination plates, measuring 279mm wide by 159mm high. The single-cavity construction provides space for data, audio\/video and power module combinations in the same faceplate, with enough depth to accommodate cable terminations and connectors behind multi-module plates.\u003c\/p\u003e\n\u003cp\u003eThe box is built for commercial and residential installations where multimedia distribution is needed — home offices with HDMI, USB and network sockets on a single plate, meeting rooms with audio\/video connectivity panels, or residential installations combining data, satellite and telephone connections. The 47mm depth handles the deeper connectors used in HDMI, USB and satellite modules, which do not fit standard 25mm or 35mm electrical back boxes.\u003c\/p\u003e\n\u003cp\u003eConstructed from 1mm-thick galvanised steel, the box includes four fixed mounting lugs and four adjustable lugs, giving flexibility for brick, plasterboard and dry-lining installations. Two earth terminals are fitted as standard. The separator channel running across the centre allows logical cable routing when multiple module types are used. Cable entry uses a combination of 20mm and 25mm knockouts positioned around the perimeter, matching standard UK conduit and cable gland sizes.\u003c\/p\u003e\n\u003cp\u003eThe galvanised finish provides corrosion resistance in indoor environments and complies with EN 60670 standards for electrical accessory enclosures. The IP20 rating suits standard indoor wall mounting where the faceplate is fitted — it is not rated for outdoor or bathroom zone use without additional protection.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e159mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e279mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth\u003c\/td\u003e\n\u003ctd\u003e47mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/datasheet-GSK298F.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat multimedia plates does this fit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis back box is designed for Knightsbridge's modular multimedia combination plates, which accept snap-in modules for HDMI, USB, satellite, network, audio and other data connectors. Check the specific faceplate's module configuration to confirm fit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this be used for standard electrical sockets?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhile the box could physically house standard electrical accessories, it is dimensioned for multimedia plates rather than traditional socket or switch configurations. For standard 2-gang electrical accessories, a conventional 2-gang back box is more appropriate and cost-effective.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat wall types can this be fitted to?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe combination of fixed and adjustable mounting lugs allows fitting to brick, block, plasterboard and dry-lining. On plasterboard the adjustable lugs grip the board from behind, while on masonry the fixed lugs accept screws into plugs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the separator channel removable?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe separator channel is a fixed part of the box structure and cannot be removed. It runs across the centre of the cavity to help organise cables when different module types (power, data, AV) are used in the same plate.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":52475468611851,"sku":"GSK298F","price":15.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/2355768_29a214ee-1e16-43dc-b273-27d0cf609387.jpg?v=1760646723"},{"product_id":"9-12g-surface-pattress-box-powder-coated-silver-grey","title":"9-12G Surface Pattress Box - Powder-coated Silver\/Grey","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge surface mount box is a 9-12G metalclad pattress in powder-coated silver\/grey, for surface-mounting a faceplate where it cannot be recessed into the wall.\u003c\/p\u003e\n\u003cp\u003eIt mounts a switch, socket or grid plate on the wall surface where the box cannot be recessed, matched to the gang size of the plate it carries.\u003c\/p\u003e\n\u003cp\u003eIt is constructed from premium grade steel, with an earth terminal for a compliant installation. It is certified to BS 4662 and IP20 rated for indoor use.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e199 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e138 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth\u003c\/td\u003e\n\u003ctd\u003e44 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003ePremium grade steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_GDSG912M_datasheet.pdf?v=1782820644\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is a surface mount box used for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA surface mount box (pattress) is fixed to the wall surface to house a switch, socket or grid plate where the box cannot be recessed into the wall.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a metal back box need earthing?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes — a metal mounting box must be earthed as part of a compliant metal-plate installation. Installation should be carried out by a competent person in accordance with BS 7671.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat plate does this box fit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt accepts a faceplate of the matching gang\/module size from the same metalclad range.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":53211701838091,"sku":"GDSG912M","price":7.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_GDSG912M.jpg?v=1782820234"},{"product_id":"galvanised-steel-back-box","title":"Galvanised Steel Back Box","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge surface mount box is a metalclad pattress in, for surface-mounting a faceplate where it cannot be recessed into the wall.\u003c\/p\u003e\n\u003cp\u003eIt mounts a switch, socket or grid plate on the wall surface where the box cannot be recessed, matched to the gang size of the plate it carries.\u003c\/p\u003e\n\u003cp\u003eIt is constructed from steel, with an earth terminal for a compliant installation. It is certified to BS 4662 and IP20 rated for indoor use.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e157 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e130 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth\u003c\/td\u003e\n\u003ctd\u003e47 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_GSK194F_datasheet.pdf?v=1782820699\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is a surface mount box used for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA surface mount box (pattress) is fixed to the wall surface to house a switch, socket or grid plate where the box cannot be recessed into the wall.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a metal back box need earthing?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes — a metal mounting box must be earthed as part of a compliant metal-plate installation. Installation should be carried out by a competent person in accordance with BS 7671.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat plate does this box fit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt accepts a faceplate of the matching gang\/module size from the same metalclad range.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":53211702591755,"sku":"GSK194F","price":7.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_GSK194F.jpg?v=1782820279"},{"product_id":"6-8g-surface-pattress-box-metalclad-textured-black","title":"6-8G Surface Pattress Box - Metalclad Textured Black","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge surface mount box is a 6-8G metalclad pattress in textured sand black, for surface-mounting a faceplate where it cannot be recessed into the wall.\u003c\/p\u003e\n\u003cp\u003eIt mounts a switch, socket or grid plate on the wall surface where the box cannot be recessed, matched to the gang size of the plate it carries.\u003c\/p\u003e\n\u003cp\u003eIt is constructed from pressed steel, with an earth terminal for a compliant installation. It is certified to BS 4662 and IP20 rated for indoor use.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e138 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e138 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth\u003c\/td\u003e\n\u003ctd\u003e44 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eSPCC Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eTextured Sand Black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_GDSG68TB_datasheet.pdf?v=1782820925\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is a surface mount box used for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA surface mount box (pattress) is fixed to the wall surface to house a switch, socket or grid plate where the box cannot be recessed into the wall.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a metal back box need earthing?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes — a metal mounting box must be earthed as part of a compliant metal-plate installation. Installation should be carried out by a competent person in accordance with BS 7671.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat plate does this box fit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt accepts a faceplate of the matching gang\/module size from the same metalclad range.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":53211706163467,"sku":"GDSG68TB","price":6.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_GDSG68TB.jpg?v=1782820439"},{"product_id":"1-2g-surface-pattress-box-metalclad-textured-black","title":"1-2G Surface Pattress Box - Metalclad Textured Black","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge surface mount box is a 1-2G metalclad pattress in textured sand black, for surface-mounting a faceplate where it cannot be recessed into the wall.\u003c\/p\u003e\n\u003cp\u003eIt mounts a switch, socket or grid plate on the wall surface where the box cannot be recessed, matched to the gang size of the plate it carries.\u003c\/p\u003e\n\u003cp\u003eIt is constructed from pressed steel, with an earth terminal for a compliant installation. It is certified to BS 4662 and IP20 rated for indoor use.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e78.1 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e78.1 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth\u003c\/td\u003e\n\u003ctd\u003e43.6 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eSPCC Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eTextured Sand Black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_M8700TB_datasheet.pdf?v=1782820928\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is a surface mount box used for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA surface mount box (pattress) is fixed to the wall surface to house a switch, socket or grid plate where the box cannot be recessed into the wall.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a metal back box need earthing?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes — a metal mounting box must be earthed as part of a compliant metal-plate installation. Installation should be carried out by a competent person in accordance with BS 7671.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat plate does this box fit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt accepts a faceplate of the matching gang\/module size from the same metalclad range.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":53211706196235,"sku":"M8700TB","price":3.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_M8700TB.jpg?v=1782820442"},{"product_id":"3-4g-surface-pattress-box-metalclad-textured-black","title":"3-4G Surface Pattress Box - Metalclad Textured Black","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge surface mount box is a 3-4G metalclad pattress in textured sand black, for surface-mounting a faceplate where it cannot be recessed into the wall.\u003c\/p\u003e\n\u003cp\u003eIt mounts a switch, socket or grid plate on the wall surface where the box cannot be recessed, matched to the gang size of the plate it carries.\u003c\/p\u003e\n\u003cp\u003eIt is constructed from pressed steel, with an earth terminal for a compliant installation. It is certified to BS 4662 and IP20 rated for indoor use.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e78.1 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e138.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth\u003c\/td\u003e\n\u003ctd\u003e43.6 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eSPCC Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eTextured Sand Black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth Terminal\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_M8900TB_datasheet.pdf?v=1782820931\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is a surface mount box used for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA surface mount box (pattress) is fixed to the wall surface to house a switch, socket or grid plate where the box cannot be recessed into the wall.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a metal back box need earthing?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes — a metal mounting box must be earthed as part of a compliant metal-plate installation. Installation should be carried out by a competent person in accordance with BS 7671.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat plate does this box fit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt accepts a faceplate of the matching gang\/module size from the same metalclad range.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":53211706229003,"sku":"M8900TB","price":3.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_M8900TB.jpg?v=1782820443"}],"url":"https:\/\/niori.co.uk\/collections\/back-boxes-accessories.oembed?page=2","provider":"Niori","version":"1.0","type":"link"}