Acetylated Timber
Accoya®
Chemically modified wood with cutting-edge acetylation technology. Rot resistant defies the elements and stays strong for decades with a 50+ year service life above ground.
Accoya Excellence
Accoya® is a chemically modified wood created through a patented acetylation process that enables it to resist to rot, defy the elements, and stay strong for decades. Non-durable species such as radiata pine are treated in a vinegar-like solution to make the timber more durable and stable.
This revolutionary process makes Accoya® versatile for use in both internal and external applications including cladding, decking, and marine structures. Above ground, Accoya® has an expected service life of more than 50 years, and 25 years in ground or freshwater contact. It's a strong alternative to natural hardwoods but versatile enough to be treated with other wood coatings if required.
50+ Years Above Ground Durability
25 Years In-Ground/Fresh Water
Dimensionally Stable
Accepts All Finishes

Why Accoya® is the premium choice for demanding applications worldwide.
Why Accoya® is the preferred choice for your projects.
50+ Year Durability
Acetylation technology provides exceptional durability with a service life of over 50 years above ground and 25 years in ground or fresh water contact.
Superior Stability
Chemically modified to resist moisture absorption, ensuring dimensional stability and preventing warping, swelling, or shrinking.
Versatile Performance
Suitable for external cladding, decking, marine structures, and can be charred or finished with standard wood coatings for custom aesthetics.
Versatile Applications
External Cladding Image

External Cladding
High-performance facades that resist rot and defy the elements for decades.
External Cladding
Decking Image

Decking
Ultra-durable decking that maintains its integrity in all weather conditions.
Decking
Marine Structures Image

Marine Structures
Ideal for docks, boardwalks, and waterfront applications.
Marine Structures
Trusted by Professionals
"Accoya® has transformed our approach to external cladding. The 50-year guarantee gives our clients complete confidence."
"We've used Accoya® on coastal projects where other timbers failed. The stability and durability are unmatched."
"The acetylation process makes Accoya® the most reliable timber we specify. No preservatives, just superior performance."
Specify Accoya® for Your Next Project
Ready to experience the ultimate in timber performance? Contact our experts for specifications and pricing.