ACCOYA®

Accoya is an ultra-high performance wood made from sustainably sourced timber

and modified through a patented acetylation process, delivering unmatched durability

and dimensional stability. Accoya can be left natural or finished to suit any design,

providing lasting performance in any climate or application. Backed by a 50-year

above-ground warranty and 25 years in-ground or freshwater, Accoya is the trusted

choice for exterior projects where longevity and low maintenance are key.

THE SECRET BEHIND ACCOYA®

Accoya isn’t just wood. It’s wood transformed.

Through a natural process called acetylation, we take fast-growing softwood and

enhance it to perform like the finest hardwoods—without the drawbacks. The science

is simple: by changing the way the wood interacts with water, we remove the root

cause of swelling, shrinking, warping and rot.

The result is real, non-toxic wood that lasts for decades, stays dimensionally stable,

and needs less maintenance. Even better, the process is circular: the only by-

product is reused as vinegar for other industries.

Stability

Accoya wood offers exceptional dimensional stability, swelling 3–4 times less than

traditional wood to keep projects looking great for decades after installation.

Durability

Accoya delivers exceptional durability, backed by a 50-year warranty above ground

and 25 years in ground or freshwater, certified for use in termite zones, and proven

to be 22 times more resistant than pine, with a service life of up to 60 years in real-

world conditions.

Versability

Accoya is the ultimate versatile substrate, trusted by craftsmen for its excellent

machinability, improved density and hardness without compromising strength, and

the flexibility to be left natural or finished to suit any design — delivering lasting

performance in any climate or application.

Sustainability

Accoya comes from FSC® certified forests, is one of the few building materials

certified Cradle to Cradle® at the Gold level, and is non-toxic and 100% recyclable.