Description
Product details
Product information
Achieve wide, seamless coverage on the deepest window reveals with this 2 pack of 400mm White uPVC Capping Boards — ideal for large-format window frames, boxed-out reveals, and full-depth internal or external sill areas. Designed for premium performance and ease of installation, this high-capacity set is perfect for larger renovation projects, commercial fit-outs, and bay window configurations where extended width is essential. Each board measures 400mm in depth, 9mm in thickness, and a full 3 metres in length — providing maximum reach with minimal joints. The total coverage of 6 metres across this 2 pack makes it perfect for completing multi-window rooms or long sill runs with a consistent, professional-grade finish. Manufactured from high-quality, UV-stable white uPVC, these boards are resistant to discolouration, cracking, fading and warping — even in sunlit or high-humidity spaces. Their bright white finish is factory-applied and completely maintenance-free — requiring no sanding, painting, or sealing before or after installation. Once fitted, they’ll stay clean and crisp for years with only occasional wiping. Despite the generous width, the 9mm profile ensures the boards remain lightweight and easy to handle on-site. They are designed to cap directly over existing or damaged timber sills, providing a fast and clean solution to conceal imperfections and extend the life of your window setup — without the mess or expense of full replacement. Whether you’re a trade installer or experienced renovator, this 2 pack offers excellent value, efficiency, and a high-end look on even the most demanding installations. All parcels must be fully opened and inspected before signing. If signed without inspection, no damage claims will be accepted. This applies to DX Express and DX Freight
- Assembly not required
- Guarantee – 15 years
Features and benefits
✔ 400mm width – ideal for extra-deep window reveals and oversized sills ✔ 9mm thickness – slimline but strong, providing reliable structural support ✔ 3 metre board length – long coverage with fewer joins for a smoother look ✔ White UV-stable uPVC – fade-proof, waterproof, and resistant to cracking ✔ Smooth factory finish – no need to paint, sand or seal ✔ Maintenance-free – simple to keep clean and bright for years ✔ Quick-fit design – fits directly over existing or damaged timber sills ✔ Perfect for bay windows, extensions, and commercial installations ✔ Supplied as a 2 pack – total 6 metres of coverage ✔ Easy to cut, handle and install – suitable for both DIY and trade use
- Made from premium UPVC – durable, lightweight and long-lasting.
- 9mm slim yet strong profile – lightweight and robust
- Smooth low-maintenance surface – simple to clean and keep looking fresh.
- UV resistant finish – prevents fading and weathering over time.
- Maintenance free surface – simple wipe clean
- 3m professional length – reduces joins for a cleaner appearance
- Quick and easy cap-over installation – saves time on site.
- Perfect for residential and commercial projects – versatile and professional.
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