Accoya®: Exceptional Durability for Demanding Climates
Why Choose Accoya?
At Black's Farmwood, we carry Accoya because it performs where other woods struggle. Through a non-toxic acetylation process, Accoya is transformed at the molecular level, giving it properties that far exceed those of untreated timber and most modified wood alternatives. For architects and builders working in the Bay Area and Northern California, where coastal moisture, temperature swings, and demanding project specs are facts of life, Accoya is worth knowing well.
Exceptionally Durable: Resistant to rot, decay, and insect damage, with a lifespan of up to 50 years above ground and 25 years in-ground.
Dimensionally Stable: Won't swell, shrink, or warp, making it ideal for precision applications like windows, doors, and tight-joinery cladding.
Sustainably Sourced: FSC®-certified and non-toxic, crafted from responsibly managed forests and fully recyclable.
Applications for Every Project Accoya performs across a wide range of residential and commercial applications. Here's where we see it specified most often in Northern California:
Decking: Accoya decking holds up exceptionally well in coastal and high-moisture environments. The dimensional stability means boards stay flat and tight over time, even with seasonal weather swings. Unlike composite decking or many hardwoods, Accoya stays relatively cool underfoot in direct sun. Accoya Natural and Accoya Color Grey can be left completely unfinished, weathering gracefully with virtually no maintenance required.
Siding: One of Accoya's strongest suits. It accepts and holds paint and finish coatings far longer than untreated wood, reducing maintenance cycles and keeping exteriors looking sharp for years. For those who prefer a natural weathered look, Accoya Natural and Accoya Color Grey can be left unfinished entirely, offering virtually zero maintenance without sacrificing durability.
Cladding: Architects specify Accoya cladding when they need a wood that performs to spec over the long term. The acetylation process means no rot, no swelling, and consistent behavior across large facade areas.
Windows & Doors: Dimensional stability is critical here. Accoya won't swell or shrink with changes in humidity, which means frames stay true and seals stay tight. Particularly valuable in the Bay Area's variable climate.
Custom Applications: From outdoor furniture to garden structures and landscape features, Accoya's durability and low maintenance make it a smart choice anywhere the wood will face the elements long term.
Photo Gallery Accoya in the field, from coastal decks and modern facades to siding and cladding projects across Northern California.
Sustainability at Its Core
Accoya carries FSC® certification and Cradle to Cradle® Gold status, two of the most rigorous sustainability standards in the building materials industry. The acetylation process is non-toxic, produces no hazardous byproducts, and dramatically extends the working life of wood, which is itself one of the most meaningful sustainability outcomes a material can offer.
Technical Resources
We've compiled the most useful Accoya documentation for architects, builders, and specifiers working on projects in Northern California.
Whether you're an architect evaluating materials for an upcoming project or a homeowner looking for a low-maintenance exterior wood that will last decades, we're happy to talk through whether Accoya is the right fit. We can provide samples so you can see and feel the material firsthand. Black's Farmwood serves the SF Bay Area and Northern California from our Petaluma showroom, available by appointment. Call us at 707-971-7405 or use our contact form to get started.
