Ultra-High Performance Sustainable Wood
Tried and tested in the US. Manufactured in Tennessee.Trusted since 2007 by architects, manufacturers and homeowners alike. With more than 500,000 landmark projects worldwide, Accoya is redefining the potential for wood.
What is Accoya Wood?
Accoya modified wood has become the lumber industry benchmark when it comes to performance and sustainability. No other wood offers the same combination of durability, stability and versatility. Sustainably sourced, and with a low total lifetime carbon cost, Accoya actively contributes to a circular, bio-based economy and is one of the few truly sustainable building materials.
Accoya is produced in both Kingsport, USA and Arnhem, the Netherlands. In this video, we take a closer look at the groundbreaking science behind Accoya wood. Through a precise acetylation process using acetic anhydride, combined with just the right heat and pressure, we increase moisture-resistant acetyl groups and reduce the water-attracting hydroxyl groups. This unique patented technology turns fast-growing, sustainable wood into an ultra-high performance building material.
Brilliance
is just the beginning
The benefits of Accoya modified wood mean that lumber projects can now be designed with absolute confidence. Accoya rot-resistant wood is a highly proven product with testing from many different perspectives on a worldwide basis. Many tests have been conducted in real world conditions over many years giving you industry leading warranties of up to 50 years.

A 50 year ‘Above Ground’ / 25 year ‘In Ground’ Warranty
Accoya wood comes with a 50 year warranty for ‘above ground’ use and 25 year warranty for in ground use.
This makes Accoya wood an incredibly durable building material that will last for decades, and prove to be a smart investment that can be used for a range of demanding applications.

Landscaping
for landmark applications
Accoya brings durability and low environmental impact to landmark applications. From floating bridges to spectacular curved sculptures, Accoya is the only choice for projects that integrate seamlessly with their surroundings.

Commercial builds
with the ultimate consistency and quality
For commercial builds where once steel and concrete would be the only option, Accoya now delivers a unique combination of structural stability, design flexibility and the natural beauty of wood.

Residential
a low maintenance choice
From low maintenance windows and doors, to sleek summer houses, to stunning siding. Accoya redefines the potential for wood in residential design.
Why choose Accoya?
Wood that stays true
Accoya remains structurally sound with virtually no movement
before, during and decades after the job is complete.
- High usability with boards that stay straight before and after installation.
- So dimensionally stable that even harsh environments will not impact installation.
- 3-4 times less swelling than traditional wood species, minimal movement keeps this project looking great.

Siding
brilliance for generations to come
Accoya’s exceptional stability means fewer installation issues and a longer lasting, high-quality finish. With wide boards, versatile surface texturing options through sawing, brushing, and charring, and a broad range of coatings, Accoya offers complete creative flexibility with no compromise on performance.

Windows and doors
quality where it counts
More durable than hardwood, Accoya comes in fixed-width sections that reduce waste, while the wide choice of coatings unlock endless design possibilities. A superior thermal performance and long service life make Accoya the smart, future-focused solution for beautiful windows and doors.

Decking
a seamless experience with every step
Resistant to distortion in even the harshest of climates, Accoya’s superior durability ensures decking remains flawless year after year. High stability means decking can be laid with smaller gaps and an even surface, making it the most barefoot-friendly option available. Low maintenance, Accoya decking has no need for coatings or frequent repairs.
Where to Buy
You can buy Accoya and Accoya products from our selection of distributors or manufacturers in your region. Use our map search tool to find your nearest Accoya supplier.