White UPVC Capping Board – 9mm x 2m (2 Pack – 100–400mm Depth Options)

Upgrade your home or commercial property with our premium White UPVC Capping Boards, supplied in a convenient 2 Pack. These 9mm thick, 2-metre long boards are the ideal solution for covering damaged or outdated internal window sills, offering a long-lasting, professional finish without the need for full removal.

Manufactured from rigid, weatherproof, and maintenance-free UPVC, these boards are perfect for bathrooms, kitchens, conservatories, and any moisture-prone areas. Their gloss white surface is smooth, wipe-clean, and resistant to fading or warping.

Choose from a wide range of widths: 100mm, 150mm, 175mm, 200mm, 225mm, 250mm, 300mm, and 400mm to suit any sill size or application. Perfect for both DIY homeowners and trade professionals looking for fast, reliable interior sill upgrades.

✅ Key Features

• Pack of 2 Boards – Ideal for larger areas or multiple sills
• 9mm Solid Profile – Durable and rigid, won’t warp or sag
• 2 Metres Long – Longer than standard boards, fewer visible joins
• Gloss White Finish – Easy to wipe clean, no painting needed
• Various Depths – Choose from 100mm to 400mm to fit your needs
• Water & UV Resistant – Perfect for humid or sunlit spaces
• Interior Use – Ideal for timber or MDF sill refurbishment

📐 Technical Specifications

🛠️ Installation Instructions

1. Clean the existing sill surface to remove dust, grease, and debris
2. Cut the board to size using a fine-tooth saw
3. Dry-fit the board and check alignment
4. Apply strong grab adhesive (e.g., CT1, Gripfill) to the back
5. Press firmly into place for 60 seconds
6. Seal edges with decorators caulk or white silicone if needed
7. Finish with matching end caps (sold separately)

🏠 Applications

• Covering old timber or MDF window sills
• Fast upgrades for property sales or rentals
• DIY or trade renovations
• Bathroom, kitchen, utility room refurbishments

🧰 Why Choose Windows4You?

Windows4You is a trusted UK-based supplier of high-quality UPVC building materials. From capping boards to cladding and fascia trims, we supply professional-grade products with fast dispatch and exceptional customer support.