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Accoya®
At Mason’s Mill & Lumber, we’re proud to supply Accoya® — the world’s leading high-performance wood. Through an advanced acetylation process, Accoya delivers unmatched durability, dimensional stability, and sustainability, making it a trusted choice for builders, architects, and designers who expect materials to perform as beautifully as they look.
What is Accoya®?
Accoya is real wood that’s been modified through acetylation, a scientific process that alters the wood’s cell structure to improve its stability and durability. The result is solid wood that performs better than many tropical hardwoods while remaining light, workable, and sustainable. It’s ideal for both exterior and interior use—holding paint longer, resisting warping, and remaining comfortable underfoot.
Applications include: cladding and rainscreens, decking, soffits, pergolas, fascia and trim, windows, doors, and humid-zone millwork.
Performance You Can Count On
Builders often choose Accoya for modern rainscreens, coastal homes, docks, rooftop decks, and door or window systems where precision and consistency matter most.
Dimensional Stability: Boards stay straight, joints stay tight, and coatings last longer.
Durability: Rated for high-exposure applications such as cladding, decking, and joinery. Accoya stands up to moisture, insects, and rot.
Low Maintenance: Reduced movement means fewer callbacks, repaint cycles, and replacements.
Finish Longevity: Coatings last longer because Accoya doesn’t move like other woods, maintaining crisp lines and smooth surfaces.
Comfort and Safety: Its stability and surface smoothness make it an excellent choice for decks and rooftop applications.
Accoya Color®: Through-Body Color Options
Natural Finish
Accoya in its natural state offers the clean, light-toned wood aesthetics with all the modified-wood performance benefits (durability, stability, sustainability). You can finish it with stain or paint, or allow it to weather to a soft silver-grey patina, depending on your design intent.
Neutral Gray
The flagship colour option from Accoya is the through-body grey tone — the pigment is integrated into the wood, not just surface applied. That means if the board is scratched or scuffed, you see the same grey tone beneath the surface.
Dive Deeper into Accoya
Accoya is sourced from FSC® certified forests and carries Cradle to Cradle® Gold Certification, with a Platinum rating for Material Health. It’s non-toxic, 100% recyclable, and has a smaller carbon footprint than many non-renewable materials. Every piece of Accoya supports long-term environmental goals without sacrificing performance or appearance.
Accoya® Frequently Asked Questions
Accoya is backed by a 50-year warranty above ground and 25-year warranty in ground or freshwater.
Accoya can be left unfinished to weather naturally to grey or factory finished for longer color retention.
Yes. Accoya is non-toxic, recyclable, and sourced from well-managed forests.
Accoya’s stability keeps joints tight and surfaces flat, even in demanding climates.
Yes. Accoya is one of the preferred exterior woods for paint and coating applications among Mason’s Mill customers. Its stability allows finishes to last longer with less cracking or peeling, making it a top choice for painted cladding, trim, and millwork.
Start Your Accoya Project Today!
Ready to bring the beauty and sustainability of Accoya into your next project?
Tell us about your project, and our team will provide a tailored quote to help you get started.