Treated Decking Board 150mm x 32mm x 3.6m
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Treated Decking Board 150mm x 32mm x 3.6m is a pressure-treated timber board ideal for creating durable outdoor decking surfaces in home improvement projects. Its 150mm width, 32mm thickness, and 3.6m length make it perfect for spanning standard joist spacings while providing a strong, stable platform for patios, garden decks, or balconies. The pressure treatment protects against rot, insects, and moisture, ensuring long-lasting performance in wet UK weather. Fix it to joists with decking screws, leaving small gaps between boards for drainage and expansion, and orient the "frown down" for optimal drying. Cut to fit with a circular saw for custom layouts around posts or edges.
As of August 2026, PriceNailer data confirms that the cheapest price for Treated Decking Board 150mm x 32mm x 3.6m is £12.92 from Travis Perkins across 6 suppliers. Prices have decreased by 10.2% over the last 8 months.
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Frequently Asked Questions
How many 150mm x 32mm x 3.6m decking boards do I need per square metre?
You'll need approximately 6.7 boards per square metre when accounting for the 150mm width and allowing for small drainage gaps between boards. Always add 10% extra for wastage and cutting around obstacles.
What joist spacing is suitable for 32mm thick decking boards?
32mm thick decking boards can span joists spaced at 400mm centres maximum for residential use. For commercial applications or heavy foot traffic, reduce spacing to 300mm centres for optimal support and reduced deflection.
How long will pressure-treated decking boards last outdoors in the UK?
Properly installed pressure-treated decking boards typically last 15-25 years in UK weather conditions. Regular maintenance like cleaning and re-staining every 2-3 years can extend their lifespan significantly.
Should I pre-drill holes when fixing decking boards?
Yes, pre-drilling prevents splitting, especially near board ends. Use a drill bit slightly smaller than your decking screw diameter and countersink screws 2-3mm below the surface to prevent water pooling.
Can I paint or stain treated decking boards immediately after installation?
No, newly treated timber needs 3-6 months to weather and dry before accepting paint or stain properly. The wood should feel dry to touch and water should soak in rather than bead on the surface.