{"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","url":"https:\/\/niori.co.uk\/products\/35mm-single-double-dry-lining-box-white","provider":"Niori","version":"1.0","type":"link"}