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White 10mm Capping Board x 5m
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White 10mm capping boards offer a clean, low-maintenance way to refresh your roofline without the cost or disruption of a full fascia replacement. Designed to be installed directly over existing timber fascia that’s still structurally sound, they provide a crisp, durable finish suited to both modern and traditional properties.
Made from durable uPVC, these boards won’t rot, warp, or peel and never need painting — just an occasional wipe down to keep them looking sharp. Supplied in 5m lengths, they’re a practical choice for both trade installations and DIY roofline upgrades.
White Smart Buy capping boards are supplied in 5m lengths and come with a 20-year guarantee on white boards, offering long-term peace of mind.
Pair them with matching White uPVC soffit boards for a consistent, seamless roofline finish — available in Flat Soffit, Vented Soffit, and Hollow Soffit styles — along with coordinating fascia trims for a professional fit and finish.
White 10mm Capping Board x 5m – Key Features
✔ 10mm white uPVC capping boards supplied in 5m lengths
✔ Designed to cover existing timber fascia (when still sound)
✔ Smooth white finish with a wipe-clean surface
✔ 20-year guarantee on white boards
✔ Easy to cut and install using standard tools
✔ Suitable for both trade and DIY roofline projects
Note: If your existing fascia boards are rotten, soft, or structurally unsound, you’ll need a full replacement.
Choose our White Smart Buy Full Replacement Fascia Boards instead — designed for direct installation onto rafters for long-term stability and a complete roofline renewal.
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Manufactured by a leading UK roofline manufacturer.
20-year guarantee applies to white boards.
Smart Buy White 10mm Capping Board (5m) – FAQs
What sizes are Smart Buy White 10mm capping boards available in?
This White 10mm range is available in 100mm up to 400mm widths, all supplied in 5m lengths.
Ideal for everything from small repairs to full roofline refresh jobs.
Do Smart Buy white capping boards come with a guarantee?
Yes — white boards come with a 20-year manufacturer’s guarantee.
In reality, once fitted properly, they’ll last well beyond that. Most issues come from the timber behind, not the board itself.
Are matching accessories available in white?
Yes — we supply matching joints, corners and trims in white so you can finish the job properly without mixing colours.
What fixings should I use for white capping boards?
Use white-headed polytop nails (typically 50mm–65mm) depending on what you’re fixing into.
Fix into solid timber, don’t overdrive them, and keep your spacing even so the board sits flat without any rippling.
Can I fix gutter brackets through a 10mm capping board?
Yes — but the fixing must go into solid timber behind.
If the timber is soft or the gutter line is already sagging, it’s usually a sign you should be using full replacement fascia, not capping.
How much is delivery and how long does it take?
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£17.99 inc VAT to mainland UK (excluding Highlands and non-mainland areas)
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2–5 working days typical lead time
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Free delivery on Smart Buy orders over £250
What if I’m not sure which width I need?
Don’t guess — it’s the quickest way to order the wrong boards.
👉 Check our guide: How to Measure for Fascia & Soffits
If you’re still unsure, send your measurements over and I’ll sense-check it before you order.