Dimensionally Stable
Reduced swelling and movement help boards remain flat and true, supporting tighter detailing and fewer installation issues.
High-performance modified wood
Accoya combines the natural character of wood with exceptional dimensional stability, durability and design flexibility for demanding exterior applications.


Performance without losing the beauty of wood
Accoya is created through acetylation, a wood-modification process that changes the cell structure so moisture has far less effect on movement. The result is wood that stays flatter and truer through changing exterior conditions.
That stability supports cleaner installation, long-lasting finishes and the freedom to use wood in architectural applications where conventional material can be more difficult to control.
Why Accoya
The value of Accoya starts with stability, then extends into durability, finishing flexibility and responsible material sourcing.
Reduced swelling and movement help boards remain flat and true, supporting tighter detailing and fewer installation issues.
Designed to withstand harsh exterior conditions while resisting common problems such as warping, swelling and cracking.
Use Accoya naturally, stain it, paint it or combine it with textured surfaces and custom finishing for a wide range of architectural looks.
Accoya is sourced from FSC-certified forests and is presented by the manufacturer as non-toxic and fully recyclable.
Applications
Accoya can be used across residential and commercial projects where stability, durability and refined wood detailing matter.
Cladding
Excellent stability supports wide boards, precise profiles, surface texturing and a broad range of coating options.
Decking
High stability allows tighter gaps and an even walking surface, while its durability suits demanding outdoor environments.
Residential
From siding and exterior millwork to windows, doors and custom details, Accoya expands where wood can be used confidently.
Commercial
Accoya brings the warmth of real wood to larger projects where dimensional consistency and long-term exterior performance are priorities.
Project imagery courtesy of Accoya Wood from the supplied Accoya product literature.

Accoya + SwiftSure
SwiftSure can combine Accoya with project-specific milling, profiles, texturing and finishing to create a material package that fits the architecture rather than forcing the architecture around a standard product.
For a more expressive finish, explore the Accoya Ibuki Line, where Accoya is paired with our charred and textured finish program.
Manufacturer-backed performance
Accoya's supplied product literature highlights long-term durability together with exceptional resistance to movement in exterior environments.
Warranty and certification statements are manufacturer claims from the supplied Accoya literature. Product use and installation must follow current Accoya guidelines and warranty terms. Accoya and the Trimarque Device are registered trademarks of Titan Wood Limited.
Technical and product literature
Review the manufacturer material for a deeper look at Accoya performance, cladding, decking, design possibilities and sustainability.
Start with your application
Send us your drawings, profile requirements, finish direction or material questions. We can help coordinate the next step.