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Accoya® turns everything you know about wood on its head. Through a revolutionary scientific process called acetylation,it modifies wood to give it properties above and beyond the very best hardwoods – and in many cases, aluminium and PVC. Since its launch in 2007, Accoya has been selected by hundreds of manufacturers as their wood of choice and used on architecturally significant projects from around the world. But perhaps its most exciting application is in everyday homes, where it brings new

possibilities for windows, doors, decking and cladding.

Performance beyond any other wood

Accoya brings unprecedented reliability for timber; it is checked and trusted not to visibly swell, shrink or distort. Highly durable, it withstands the test of any climate. And what’s more, it stays that way – a 50 year above ground, and 25 year below ground and freshwater warranty are testament to the fact that you can expect to enjoy your Accoya wood for many decades to come.

Finish with the ultimate consistency and quality

Finish sums up many of the reasons architects and manufacturers love working with Accoya – coatings look brilliant and last longer, generally require less maintenance saving time and money in the long-term.

Sustainability unrivalled anywhere in the market

Accoya is the truly sustainable choice that helps you meet global challenges like climate change. From source to production and through to end of life, sustainability shines through. Accredited by the FSC® and Cradle to Cradle Gold certified™, it is the only construction material in the world to achieve C2C Platinum certification™ for Material Health. With a low carbon footprint, you can help combat carbon emissions for a healthier world. It’s also non toxic, so safe for people and pets as well as the planet.

Windows & Doors

Thanks to their stability, Accoya windows and doors open effortlessly all year round – and will for decades to come. Long lasting coatings keep windows and doors looking pristine for longer, and natural insulation keeps homes cosy and energy costs down. A low lifetime maintenance cost makes Accoya a solid long-term investment at little cost to the environment.


When aesthetics and low maintenance are critical, Accoya becomes the clear choice – it’s ideal for cladding where the elements will do their worst. Long lasting coatings with low maintenance will keep cladding looking great. Bespoke profiles and finishes allow you to get the look you want, with the availability of wide and thick boards allowing you ultimate creative freedom.


There’s really no limit when it comes to the design potential of Accoya – from park benches to guitars, outdoor sculpture and velodromes, the possibilities are endless. Visit for further inspiration and to see the wide range of projects we have completed around the world.

Wood to change the world

Accoya wood is made by Accsys at its plant in Arnhem, in the Netherlands. Accsys transforms fast-growing, certified sustainable wood into Accoya wood through its proprietary acetylation process. The result is high performing sustainable timber with sustainability credentials that exceed those of man-made, intensely resource depleting and heavily carbon-polluting alternatives


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