{"title":"Onboard","description":"Onboard tile backer boards, wetroom trays, tanking kits and fixings — waterproof, insulated substrates and accessories for tiling wet rooms, showers and bathrooms.","products":[{"product_id":"tile-backer-insulation-board-1200x600mm","title":"Tile Backer Insulation Board 1200x600mm","description":"\u003cspan data-mce-fragment=\"1\"\u003eWaterproof tile backing board and insulating system for wet rooms, showers and bathrooms. For use instead of chipboard, ply or plasterboard to give a strengthened and stabilised level surface which is ready for tiling.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eManufactured from waterproof extruded polystyrene, cement coated on both sides and strengthened with a fibreglass mesh. Suitable for use on metal and timber stud work, existing block walls and floors.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eWaterproof - Totally impervious to moisture, providing a ready to tile substrate\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eInsulating - High thermal insulation properties ensuring minimal heat transfer to adjacent surfaces\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eLightweight - Easy to handle and cut\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eVersatile - Suitable for use on timber and metal studworks, concrete and timber floors\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003ca href=\"https:\/\/www.millcot.com\/collections\/underfloor-heating\"\u003eUnderfloor Heating\u003c\/a\u003e - Suitable for use beneath electrical \u003ca href=\"https:\/\/www.millcot.com\/collections\/underfloor-heating\"\u003eunderfloor heating\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Onboard","offers":[{"title":"6mm","offer_id":43962418823384,"sku":"6006","price":8.39,"currency_code":"GBP","in_stock":true},{"title":"10mm","offer_id":43962418856152,"sku":"6010","price":8.99,"currency_code":"GBP","in_stock":true},{"title":"12mm","offer_id":43962418888920,"sku":"6012-1","price":9.59,"currency_code":"GBP","in_stock":true},{"title":"6mm - Pack of 10","offer_id":55738652131711,"sku":"6006-1","price":78.0,"currency_code":"GBP","in_stock":true},{"title":"10mm - Pack of 10","offer_id":55738652164479,"sku":"6010-1","price":83.89,"currency_code":"GBP","in_stock":true},{"title":"12mm - Pack of 10","offer_id":55738652197247,"sku":"6012-2","price":90.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/5794\/7096\/files\/Capture.png?v=1778049201"},{"product_id":"onboard-tilable-wet-shower-tray-square-drain","title":"Onboard Tilable Wet Shower Tray - Square Drain","description":"\u003cp\u003eThe Onboard Tilable \u003ca href=\"https:\/\/www.millcot.com\/collections\/substrat-wetroom-systems\"\u003eWetroom\u003c\/a\u003e Tray is a pre-formed shower tray with a rigid, waterproof, ready-to-tile base. Featuring a durable polystyrene core, cement-based coating, and pre-formed falls for efficient drainage, it provides a solid foundation for professional \u003ca href=\"https:\/\/www.millcot.com\/collections\/substrat-wetroom-systems\"\u003ewetroom\u003c\/a\u003e installations.\u003c\/p\u003e\u003cp\u003eFully waterproof and ready to tile onto, this tray ensures a seamless, durable finish with reliable performance. Supplied with a Shower-Trap, it simplifies installation while offering excellent drainage and long-lasting durability. Ideal for both domestic and commercial projects, the Onboard Tilable \u003ca href=\"https:\/\/www.millcot.com\/collections\/substrat-wetroom-systems\"\u003eWetroom\u003c\/a\u003e Tray combines convenience, quality, and professional results in one complete solution.\u003c\/p\u003e","brand":"Onboard","offers":[{"title":"900mm x 900mm x 20mm","offer_id":57248824230271,"sku":"9071","price":149.99,"currency_code":"GBP","in_stock":true},{"title":"1000mm x 1000mm x 20mm","offer_id":57248824263039,"sku":"9073","price":149.99,"currency_code":"GBP","in_stock":true},{"title":"1200mm x 900mm x 20mm","offer_id":57248824295807,"sku":"9070","price":149.99,"currency_code":"GBP","in_stock":true},{"title":"1500mm x 900mm x 20mm","offer_id":57248824328575,"sku":"9072","price":149.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/5794\/7096\/files\/9071.png?v=1777877041"},{"product_id":"onboard-9007-tile-backer-board-fixing-screws-washers-box-of-100","title":"OnBoard 9007 Tile Backer Board Fixing Screws \u0026 Washers – Box of 100","description":"\u003ch2\u003eOnBoard Tile Backer Board Fixing Screws \u0026amp; Washers\u003c\/h2\u003e\n\n\u003cp\u003eThe OnBoard 9007 Fixing Screws and Washers are purpose-designed fasteners for securing OnBoard Tile Backer Boards to timber subframes, plywood, floorboards, studwork walls and battened wall surfaces. Each galvanised steel washer distributes the holding load across the board face, preventing pull-through and ensuring a rigid, stable substrate for tiling.\u003c\/p\u003e\n\n\u003cp\u003eSupplied in a convenient trade box containing 100 screws and 100 washers, this kit provides everything needed to fix a standard installation in a single purchase.\u003c\/p\u003e\n\n\u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePrevents board pull-through with wide 35mm diameter washer\u003c\/li\u003e\n  \u003cli\u003eGalvanised steel construction resists corrosion in wet area applications\u003c\/li\u003e\n  \u003cli\u003ePurpose-matched to OnBoard Tile Backer Board systems\u003c\/li\u003e\n  \u003cli\u003eSecure, flush fix to timber and studwork substrates\u003c\/li\u003e\n  \u003cli\u003e100 screws and 100 washers supplied – everything in one box\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp\u003eSuitable for fixing OnBoard Tile Backer Boards in wetrooms, shower enclosures, bathroom walls and floors, and any area requiring a stable tiling substrate. Compatible with timber, plywood, floorboard and studwork wall substrates.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Use Fixing Washers?\u003c\/h3\u003e\n\u003cp\u003eStandard screws alone can pull through tile backer board under load. The 35mm diameter washer bridges the screw head and spreads the clamping force across a wider surface area, maintaining board integrity and preventing movement that could crack grout or tiles over time.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBrand: OnBoard Tile Backer System\u003c\/li\u003e\n  \u003cli\u003eStock Number: 9007\u003c\/li\u003e\n  \u003cli\u003eMaterial: Galvanised Steel\u003c\/li\u003e\n  \u003cli\u003eWasher Diameter: 35mm\u003c\/li\u003e\n  \u003cli\u003ePack Contents: 100 Screws \u0026amp; 100 Washers\u003c\/li\u003e\n  \u003cli\u003ePack Quantity: 1 Box\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cp\u003e1 box containing 100 galvanised steel fixing screws and 100 × 35mm diameter galvanised steel washers.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMillcot\u003c\/strong\u003e — Professional Trade Supplies for Tilers, Wetroom Installers and Bathroom Fitters.\u003c\/p\u003e","brand":"OnBoard","offers":[{"title":"1 Box","offer_id":57677408403839,"sku":"ONB-9007","price":11.99,"currency_code":"GBP","in_stock":true},{"title":"10 Boxes","offer_id":57677433667967,"sku":"ONB-9007-10","price":99.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/5794\/7096\/files\/ChatGPTImageJun3_2026_02_29_22PM.png?v=1780500787"},{"product_id":"onboard-waterproofing-kit","title":"Onboard Waterproofing Kit – Complete Tanking Kit for Wetrooms, Showers \u0026 Bathrooms (10m²)","description":"\u003cp\u003eThe Onboard Waterproofing Kit is a complete tanking system for wetrooms, showers and bathrooms, giving professional tilers and DIY installers everything needed to create a fully waterproof substrate before tiling. Designed for use ahead of ceramic and porcelain tiling, it provides a reliable secondary waterproof barrier in areas subject to constant or frequent water exposure.\u003c\/p\u003e\u003cp\u003eEach kit includes a flexible waterproofing membrane, primer, fleece reinforcing tape and application accessories, giving a complete solution in one pack rather than sourcing components separately. The membrane cures to form a seamless, flexible waterproof layer that resists cracking and moisture ingress, protecting walls and floors beneath the tiled finish.\u003c\/p\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eComplete tanking solution in a single kit — no need to source separate components\u003c\/li\u003e\n\u003cli\u003eFlexible membrane resists cracking under normal building movement\u003c\/li\u003e\n\u003cli\u003eFleece tape reinforces vulnerable wall\/floor junctions and internal corners\u003c\/li\u003e\n\u003cli\u003eSuitable for use with tile backer boards, plaster, render and concrete substrates\u003c\/li\u003e\n\u003cli\u003eCovers up to 10m² per kit\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eIdeal for shower enclosures, wet rooms, bathroom walls and floors, and other interior wet areas prior to tiling. Suitable for use over concrete, sand\/cement render, plasterboard and tile backer board substrates. Used by professional tilers, bathroom fitters and wetroom installers, as well as competent DIY users tackling a bathroom renovation.\u003c\/p\u003e\u003ch3\u003ePerformance \u0026amp; Application\u003c\/h3\u003e\u003cp\u003ePrime the substrate with the supplied Onboard primer, then apply the waterproofing membrane by brush in even coats, reinforcing all corners and wall\/floor junctions with the fleece tape. Once fully cured, the membrane provides a continuous waterproof layer ready to receive tile adhesive directly.\u003c\/p\u003e\u003cp\u003eMillcot supplies trade-quality tanking and waterproofing systems trusted by tiling professionals across the UK — the Onboard Waterproofing Kit is a straightforward, reliable choice for any wetroom or bathroom project.\u003c\/p\u003e","brand":"Onboard","offers":[{"title":"Default Title","offer_id":58174977016191,"sku":"ONB-TANK-KIT-9008","price":47.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/5794\/7096\/files\/Onboard-Tanking-Kit.png?v=1786633595"},{"product_id":"onboard-tile-backer-insulation-board-1200x600mm-half-pallet-50-boards","title":"Onboard Tile Backer Insulation Board 1200x600mm – Half Pallet (50 Boards)","description":"\u003cspan data-mce-fragment=\"1\"\u003eWaterproof tile backing board and insulating system for wet rooms, showers and bathrooms, supplied as a half pallet of 50 boards (1200x600mm). For use instead of chipboard, ply or plasterboard to give a strengthened and stabilised level surface which is ready for tiling.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eManufactured from waterproof extruded polystyrene, cement coated on both sides and strengthened with a fibreglass mesh. Suitable for use on metal and timber stud work, existing block walls and floors. Buying by the half pallet gives trade installers a cost-effective way to stock up for multi-room projects without the lead time of ordering board by board.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eWaterproof - Totally impervious to moisture, providing a ready to tile substrate\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eInsulating - High thermal insulation properties ensuring minimal heat transfer to adjacent surfaces\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eLightweight - Easy to handle and cut\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eVersatile - Suitable for use on timber and metal studworks, concrete and timber floors\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eHalf pallet of 50 boards - available in 6mm, 10mm and 12mm thicknesses\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003ca href=\"https:\/\/www.millcot.com\/collections\/underfloor-heating\"\u003eUnderfloor Heating\u003c\/a\u003e - Suitable for use beneath electrical \u003ca href=\"https:\/\/www.millcot.com\/collections\/underfloor-heating\"\u003eunderfloor heating\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Onboard","offers":[{"title":"6mm","offer_id":58268891775359,"sku":"6006-HP50","price":329.4,"currency_code":"GBP","in_stock":true},{"title":"10mm","offer_id":58268891808127,"sku":"6010-HP50","price":377.4,"currency_code":"GBP","in_stock":true},{"title":"12mm","offer_id":58268891840895,"sku":"6012-HP50","price":437.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/5794\/7096\/files\/Onboard-Pallet-Image.png?v=1787689886"},{"product_id":"onboard-tile-backer-insulation-board-1200x600mm-full-pallet-100-boards","title":"Onboard Tile Backer Insulation Board 1200x600mm – Full Pallet (100 Boards)","description":"\u003cspan data-mce-fragment=\"1\"\u003eWaterproof tile backing board and insulating system for wet rooms, showers and bathrooms, supplied as a full pallet of 100 boards (1200x600mm). For use instead of chipboard, ply or plasterboard to give a strengthened and stabilised level surface which is ready for tiling.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eManufactured from waterproof extruded polystyrene, cement coated on both sides and strengthened with a fibreglass mesh. Suitable for use on metal and timber stud work, existing block walls and floors. Buying by the full pallet is the most cost-effective way for trade installers to stock up on large wetroom or shower installation projects.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eWaterproof - Totally impervious to moisture, providing a ready to tile substrate\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eInsulating - High thermal insulation properties ensuring minimal heat transfer to adjacent surfaces\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eLightweight - Easy to handle and cut\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eVersatile - Suitable for use on timber and metal studworks, concrete and timber floors\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFull pallet of 100 boards - available in 6mm, 10mm and 12mm thicknesses\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003ca href=\"https:\/\/www.millcot.com\/collections\/underfloor-heating\"\u003eUnderfloor Heating\u003c\/a\u003e - Suitable for use beneath electrical \u003ca href=\"https:\/\/www.millcot.com\/collections\/underfloor-heating\"\u003eunderfloor heating\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Onboard","offers":[{"title":"6mm","offer_id":58268893970815,"sku":"6006-FP100","price":634.8,"currency_code":"GBP","in_stock":true},{"title":"10mm","offer_id":58268894003583,"sku":"6010-FP100","price":718.8,"currency_code":"GBP","in_stock":true},{"title":"12mm","offer_id":58268894036351,"sku":"6012-FP100","price":838.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/5794\/7096\/files\/Onboard-Pallet-Image-Full.png?v=1787689819"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/5794\/7096\/collections\/Capture.png?v=1787690367","url":"https:\/\/www.millcot.com\/collections\/onboard.oembed","provider":"MILLCOT","version":"1.0","type":"link"}