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Accoya Siding,Decking & Cladding
At Mason’s Mill & Lumber, we supply Accoya — the high-performance wood trusted for exterior siding, decking, cladding, trim, and joinery. Made through an acetylation process, Accoya delivers excellent dimensional stability, durability, and long-term performance for projects where reliability matters most.
What is Accoya?
Accoya is real wood that has been modified through acetylation to improve stability and durability. The process changes how the wood behaves with moisture, helping it resist swelling, shrinking, and decay while remaining lightweight and easy to work with.
That makes it a strong choice for both exterior and interior applications, especially in demanding environments.
Why builderschoose Accoya
Accoya is often selected for projects that need long-term performance, clean lines, and fewer maintenance issues. Its stability helps coatings last longer, joints stay tighter, and finished surfaces look better over time.
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.
Best applications for Accoya
Accoya is well suited for siding, cladding, rainscreens, decking, fascia, trim, soffits, pergolas, windows, doors, and custom exterior millwork.
It is especially useful on modern homes, coastal projects, rooftop decks, and other projects that need durable wood with dependable performance.
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
Yes. Accoya is widely used for siding and cladding because it is stable, durable, and performs well in exterior conditions.
Yes. Accoya is a strong option for decking because it resists moisture-related movement and holds up well in demanding exterior environments.
Yes. Accoya is positioned as a sustainable wood product and is associated with FSC sourcing and Cradle to Cradle Gold certification.
Mason’s Mill & Lumber supplies Accoya in Houston and can help with quotes, samples, and project support.
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!
Tell us about your project, and our team will help you choose the right Accoya product for siding, decking, cladding, trim, or custom millwork. Request a quote or ask for samples to get started.