Redefining

the world of wood

Accoya is a revolution in modified dimensionally stable wood, delivering remarkable levels of performance. A product made to last.

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 a high performing product with sustainability credentials that exceed those of man-made, intensely resource depleting and heavily carbon-polluting alternatives.

 

This gives the world the choice to build sustainably, offering new opportunities for the built environment.

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Watch the Accoya story

outstanding
Why us?

outstanding

products to last a lifetime

Since its launch in 2007, hundreds of manufacturers have made Accoya their material of choice in homes and buildings for applications such as cladding, windows, doors and decking. Some of the most architecturally significant projects in the world have featured Accoya for both its performance and versatility.

ACETYLATION PROCESS

How it works

1
Hyrdoxyl Groups – Hydroxyls are hydrophilic (attract water), causing cellulose to swell (and shrink when subsequently dried) and become more susceptible to attach by biological organisms
2
Acetyl Groups – Wood cellulose contains a small number of naturally occurring acetyl groups which are hydrophobic (repel water). There are an insufficient number of acetyls in natural wood to provide durable, stable performance.
3
Acetylation – Reaction of wood with acetic anhydride (concentrated acetic acid) at high temperature to precisely increase the level of moisture resistant acetyl groups.
4
Accoya Acetylated Wood – Contains the same constituents as natural wood, just at enhanced levels. There are now more of the moisture resistant groups and less of the moisture binding groups. This delivers high performance through increasing dimensional stability and enhanced biological durability.
1
Hyrdoxyl Groups – Hydroxyls are hydrophilic (attract water), causing cellulose to swell (and shrink when subsequently dried) and become more susceptible to attach by biological organisms
2
Acetyl Groups – Wood cellulose contains a small number of naturally occurring acetyl groups which are hydrophobic (repel water). There are an insufficient number of acetyls in natural wood to provide durable, stable performance.
3
Acetylation – Reaction of wood with acetic anhydride (concentrated acetic acid) at high temperature to precisely increase the level of moisture resistant acetyl groups.
4
Accoya Acetylated Wood – Contains the same constituents as natural wood, just at enhanced levels. There are now more of the moisture resistant groups and less of the moisture binding groups. This delivers high performance through increasing dimensional stability and enhanced biological durability.

video

What do our customers say?

Decade of

durability

where Accoya has been put to the test

Take a look at some Accoya projects from the last decade. These projects provide powerful evidence of Accoya’s extreme durability across both domestic and commercial applications. The results speak for themselves and demonstrate Accoya’s suitability for applications such as windows, doors, decking and cladding. Durability is just one factor in Accoya’s appeal to design experts and consumers alike. Find out more.

Built in 2018, this beach restaurant located in St Kilda, Melbourne features Accoya charred cladding. Today, the Accoya still looks great despite limited maintenance over the past few years.

The Noosa Boardwalk was replaced with Accoya wood in 2018. In such an exposed coastal location on the Australian Sunshine Coast, the Accoya decking has weathered to a beautiful silver grey patina.

The Incubator building, part of Macquarie University in Sydney, Australia was built in 2017. Accoya windows were chosen to stand the test of time, with low maintainance but long lasting coatings.

The Darling Exchange facade is made from Accoya wood and was completed in 2018. When visited last, the Accoya showewd no signs of rot or decay, proving Accoya lives up to the challenge.

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.

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