Accoya® – Innovation in wood

Accoya® wood is a long-lasting, non-toxic wood, sourced from sustainable FSC® certified wood. It is a high-performance wood, ideal for outdoor use and challenging applications.

Accoya® wood is based upon acetylated wood technology. Modifying the chemical structure of natural wood it changes the free hydroxyls within the wood into acetyl groups. As a result the ability of wood to absorb water is greatly reduced, rendering the wood more dimensionally stable and extremely durable. 

Thanks to its outstanding durability and other benefits Accoya® wood has been certified repeatedly for its sustainability.

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Durable, stable and sustainable modified wood


Product features

Dimensionally stable

  • Swelling and shrinkage reduced by 75% or more
  • Doors and windows open effortlessly year round
  • Reduced maintenance costs

Outstanding durability

  • Lasting 50 years above ground, 25 years in ground/freshwater Class 1 durability, surpassing even teak
  • Virtually rot proof
  • 70 year minimum service life stated by TRADA

Perfect for coating

  • Improved stability means coatings last up to two times longer
  • Easier to coat, less preparation and sanding required

Ecolabels acquired

C2C Gold Certificate

Accoya® wood is one of the very few building products to have acquired Cradle to CradleSM Certification on the exclusive Gold level.

FSC® Certification

Forest Stewardship Councils® (FSC®) are regarded as the leading and most comprehensive certification programs available.

Nordic Ecolabelling Licence

The outstanding green credentials of Accoya®, have been officially recognised by Europe’s Nordic nations with the award of the Svanen Ecolabel.