Upgrade narrow window sills quickly and professionally with this 100mm deep White uPVC Capping Board. Designed to fit slimmer reveals, this board offers a neat, clean appearance for windows in both modern and traditional settings. At 9mm thick, it strikes the perfect balance between strength and low-profile design, while the durable white uPVC surface is UV-stable and resistant to weathering, fading, and yellowing. The 1.75 metre length makes it easy to handle on-site and ideal for smaller installations or custom window updates. A perfect solution for refurbishments, rental properties, or replacing damaged sills without needing full removal. Sold as a single piece, it’s a cost-effective and flexible choice for trade professionals and DIYers alike. 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.