Accoya®: Acetylated Radiata PIne

Ultra-High Performance Sustainable Wood

Accoya is the timber industry benchmark for performance and sustainability. Trusted by architects since 2007 on more than 500,000 projects worldwide, it shows virtually no movement before, during and for decades after installation.

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Stable by Design

Accoya’s acetylated modified wood is made through a precise acetylation process that uses acetic anhydride with carefully controlled heat and pressure. It adds moisture-resistant acetyl groups and reduces the water-attracting hydroxyl groups in the wood. The result is a clean, consistent material that holds tight reveals and crisp details. It can be left natural to show its grain or prefinished in custom colors, from deep shou sugi ban blacks to soft, light tones.

Key Features & Benefits

Accoya can be used on exterior and interior cladding, and decking. It gives designers the warmth of natural wood with durability that competes with the most demanding materials.

3–4 times less swelling than traditional wood species
Improved density and hardness without sacrificing strength
Non-toxic and 100% recyclable

Sustainability: Responsible Sourcing

Accoya comes from FSC®-certified forests
Cradle to Cradle Certified® Gold, with Platinum for Material Health
A carbon sink with much lower lifecycle emissions than many non-renewable building materials, contributing to LEED and BREEAM