Sustainable Durability from Accoya
Accoya is a sustainable modified timber offering excellent durability and stability in all weather conditions. Its reliable performance makes it a practical choice for long-lasting decking and cladding applications. Available in two finishes: Accoya Natural and Accoya Grey.
Why Choose Accoya?
Accoya is designed to perform externally with less movement, distortion and shrinkage than many conventional timbers. Its stability makes it a practical choice for exposed areas, reducing the risk of warping or premature replacement. Accoya Grey is coloured through to the core so, unlike surface coatings, the finish will not flake or peel. Both finishes are also non-toxic and sustainably sourced, achieving Cradle to Cradle Certified® Gold.
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Certified Sustainability
Accoya offers strong environmental credentials across its lifecycle, from responsible sourcing through to long-term use. Made from fast-growing, sustainably sourced radiata pine, it provides a durable timber option that helps reduce the need for early replacement.
Accoya is Cradle to Cradle Certified® Gold overall and has achieved Platinum certification for Material Health. Its long service life and low carbon footprint make it a practical choice for projects where sustainability and performance both matter.
How Accoya Performs
Accoya’s performance comes from the acetylation process, which changes the structure of the wood so it absorbs less water. This helps improve dimensional stability, reducing the risk of swelling, shrinkage and distortion in external conditions.
The result is a timber that remains stable and durable across changing weather conditions. Suitable for decking and cladding, Accoya offers the look and feel of real wood with improved reliability for long-term outdoor use.
Technical Resources
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Product summary
Accoya is a sustainable modified timber for external decking and cladding. Made from fast-growing radiata pine, it is treated through acetylation to reduce water absorption and improve long-term stability. The result is a durable, low-maintenance timber option that combines the look of natural wood with reliable external performance.

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