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Building Boards & Tile Backer Systems · Made in Germany
✓ wedi Certified Experts
100% Waterproof Core
CE Marked
wedi Building Board — XPS Tile Backer & Insulation Boards for Wet Rooms, Showers & Steam Rooms
6mm
Standard wall board
10mm
Wall & ceiling
20mm
Floor & wall
30mm
Floor insulation
50mm
High insulation
CE
Certified & tested
wedi Building Board Range
Tile Backer Board
wedi Building Board
The original waterproof XPS tile backer board — 6mm to 50mm thickness. Tile directly with wedi 320 adhesive. No primer, no tanking membrane.
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Large Format
wedi Building Board XL & XXL
Oversized XPS insulation boards for larger wall and floor areas. Fewer joints, faster installation — ideal for commercial and larger residential projects.
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Prefabricated Elements
wedi Functional Elements
Factory-made XPS corner joints, pipe boxing, shower niches and wall elements. Cuts installation time on complex wet room builds.
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System Accessories
wedi System Adhesives & Fixings
wedi 610 adhesive sealant, wedi 320 tile adhesive, sealing tape, screws and washers. Use system products to maintain the 10-year warranty.
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BBA Approved — British Board of Agrément Certificate
wedi building boards hold full BBA (British Board of Agrément) approval — the UK's leading independent construction product certification body. BBA approval confirms that wedi boards have been independently tested and assessed for fitness for purpose in UK construction, providing specifiers and contractors with assurance of product performance, compliance and long-term durability in wet room environments.
Download BBA Certificate (PDF) →
The wedi building board is the UK's most trusted waterproof tile backer and insulation board for wet rooms, shower enclosures and steam rooms. Manufactured from extruded polystyrene (XPS) foam faced with glass-fibre reinforced polymer, it is 100% waterproof to the core — no separate tanking membrane required. wedi tile backer boards are up to 80% lighter than traditional cement board, can be cut on site with a knife or saw, and are CE marked for use in high-humidity environments. As wedi-certified experts, Wetrooms Online carry the full range with Trade Club pricing and UK delivery.
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Certified
UK Supplier
UK Supplier
Wetrooms Online
All wedi Building Boards & Tile Backer Systems
Wedi Fundo Sealing Set - Tanking / Waterproofing Kit
Regular price
£94.00
Sale price
£94.00
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wedi 610 Adhesive Sealant - 310ml
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£23.00
Sale price
£23.00
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£0.00
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wedi Fundo DN50 Drain Substructure
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£66.00
Sale price
£66.00
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£0.00
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Side Slope Tile Profile for WetBase® One Infinity by wedi: 1200mm
Regular price
From £106.00
Sale price
From £106.00
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Side Slope Tile Profile for WetBase® One Infinity by wedi: 1800mm
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From £135.00
Sale price
From £135.00
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wedi Subliner Dry - Waterproofing Membrane Barrier
Regular price
From £102.00
Sale price
From £102.00
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£0.00
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Wedi Tools Reinforcement Tape for Wedi Building Boards
Regular price
£24.00
Sale price
£24.00
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Wedi Tools Sealing Tape for Wedi Building Boards
Regular price
From £70.00
Sale price
From £70.00
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£0.00
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wedi Fundo Wave Horizontal Drain for Fundo Flex
Regular price
£77.00
Sale price
£77.00
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£0.00
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wedi Fundo Fundo Flex Channel Element for Fundo Channel Drain
Regular price
From £219.00
Sale price
From £219.00
Regular price
£0.00
Unit price
Wedi Tools Fixing Set for Wedi Building Boards
Regular price
£51.00
Sale price
£51.00
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Unit price
wedi Subliner Dry & Flex - Waterproofing & Decoupling Membrane Barrier
Regular price
£283.00
Sale price
£283.00
Regular price
£0.00
Unit price
wedi Top Wall Installation Set
Regular price
£32.00
Sale price
£32.00
Regular price
Unit price