Golden Oak UPVC Capping Board – 1.5m Long, 1 Pack (150–300mm Depth Options)

Upgrade your interior window sills with ease using our Golden Oak UPVC Capping Boards. Designed for style, durability, and hassle-free installation, each board is 1.5 metres long and 9mm thick – perfect for covering existing timber or MDF sills that are worn, swollen, or damaged.

Whether you’re a homeowner, landlord, or tradesperson, these boards offer a quick and professional solution for giving window sills a clean, modern look. Manufactured from rigid, waterproof UPVC and finished in a realistic woodgrain Golden Oak pattern, they mimic the warmth of natural wood while delivering all the low-maintenance benefits of plastic trim.

This 1-pack includes a single 1.5m board, ideal for shorter windows or trimming to size. With depth sizes ranging from 150mm to 300mm, you can find the perfect fit for a variety of internal window sill applications. Strong, durable, and visually appealing, this is the ideal upgrade without the need for extensive carpentry or costly replacements.

Key Product Benefits

• 1.5 metre length – great for medium-length sills with minimal joins
• 9mm thick UPVC – robust and impact-resistant
• Golden Oak finish – realistic woodgrain appearance with zero maintenance
• Completely waterproof – perfect for kitchens, bathrooms, or damp environments
• UV-resistant – long-lasting colour and finish, no fading over time
• Quick installation – trim to size and apply with grab adhesive or screws
• Available widths: 150mm, 175mm, 200mm, 225mm, 250mm, 300mm
• Matching accessories available – corners, end caps, sealant sold separately

Ideal Applications

• Modernising old timber sills in homes, offices, or commercial spaces
• Refurbishing rental properties cost-effectively
• Covering MDF sills prone to swelling or damage
• Improving aesthetics before house sale or letting
• Protecting sill surfaces in high-humidity environments

Technical Specifications

Installation Guide

1. Clean and dry the existing sill to ensure a good bond
2. Measure and cut board using a fine-tooth saw
3. Dry-fit and adjust as necessary
4. Apply grab adhesive evenly to the rear surface
5. Press board firmly in place for at least 60 seconds
6. Seal edges with colour-matched silicone for a clean, finished look

Tip: Use butt joints or joining trims for longer sills needing multiple boards.

Why Choose Windows4You?

As a UK-based supplier, Windows4You offers top-quality UPVC building products including capping boards, window trims, fascias, and more. Our stock is sourced from trusted manufacturers, ensuring consistency, value, and great performance. We ship quickly across the UK and provide expert support when you need it most.