Revolutionary acetylated timber with exceptional durability, dimensional stability, and industry-leading 50-year above ground warranty for demanding architectural applications across Europe.
Accoya wood undergoes a proprietary acetylation process that permanently modifies the wood's cellular structure, resulting in exceptional performance characteristics unmatched by traditional timber.
Achieves Class 1 durability rating (equivalent to teak) with natural resistance to rot, decay, fungi and insect attack. Guaranteed for 50 years above ground.
75% more stable than untreated wood, with significantly reduced swelling and shrinking in changing humidity conditions. Minimal movement in service.
Cradle-to-cradle Gold certified, non-toxic process, and sourced from sustainably managed FSC® certified forests. Carbon negative footprint.
Accoya wood is the material of choice for architects and builders seeking premium performance in challenging environments across diverse European climates.
Detailed technical information for architects, engineers, and specifiers to ensure optimal project outcomes with Accoya wood.
Explore inspiring applications of Accoya wood in visionary architectural projects across Europe and beyond.
Contemporary office building featuring Accoya vertical cladding with integrated ventilation system in Amsterdam
Luxury residential terrace in Switzerland with Accoya decking system, featuring hidden fasteners and custom finishes
Historic building restoration in Vienna featuring custom-designed Accoya windows with authentic period details
Common questions about Accoya wood technology, applications, and specifications for architectural projects.
Accoya undergoes a proprietary acetylation process that permanently modifies the wood's cellular structure. This creates a timber that is Class 1 durable (equivalent to teak), 75% more dimensionally stable, and comes with a 50-year above ground warranty. Unlike pressure-treated wood, the modification is non-toxic and throughout the entire timber, not just the surface.
Yes, Accoya has a 25-year warranty for ground contact applications and is ideal for decking posts, fencing, and landscaping features. For full ground burial, we recommend consulting with our technical team for specific project requirements.
Accoya accepts all standard wood finishes exceptionally well. For exterior applications, we recommend high-quality opaque or semi-transparent coatings. For interior use, oils, varnishes, and stains all perform excellently. The wood's stability means finishes last longer without cracking or peeling.
Accoya is Cradle to Cradle Gold certified, FSC certified, and has a negative carbon footprint over its lifecycle. The acetylation process uses acetic anhydride derived from sustainable biomass, and the wood is 100% recyclable or compostable at end of life.
Accoya can be left uncoated to weather naturally to a beautiful silver-grey. However, if you wish to maintain its original appearance or choose a specific color, it takes coatings exceptionally well. Because it doesn't shrink or swell, paint and stains last 2–3 times longer on Accoya than on traditional timbers.
Yes. Accoya is comparable to a soft hardwood in terms of workability. It can be machined, planed, and sanded using standard woodworking tools. Due to its superior stability, it remains flat and easy to handle throughout the manufacturing and installation process.
Request technical specifications, material samples, or schedule a consultation with our Accoya specialists. We serve architects, builders, and designers across Europe.
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