whaT IS ACCOYA?

Redefining the World of Wood

Accoya is a modified wood type that stands out with its superior durability and dimensional stability. Thanks to the acetylation process, it gains maximum resistance to decay, swelling, and shrinkage.

This innovative process turns Accoya into a longer-lasting and low-maintenance material compared to traditional wood species.

The Most Durable and Stable

The Best Wood in the World

Accoya wood is produced in the city of Arnhem, the Netherlands, in a high-tech facility using fast-growing and certified sustainable timber. Modified through acetylation technology, this unique wood achieves exceptional durability and dimensional stability, making it a superior alternative to traditional materials.

Compared to energy- and resource-intensive materials, Accoya is a low-carbon solution that maintains high performance with minimal environmental impact. Its long service life and resistance to decay, swelling, and deformation make it a reliable material for long-term projects.

Accoya is certified for sustainability and performance, making it a strong and responsible choice for architects and designers worldwide.

Lifetime Use

Why Choose Accoya Wood?

Since its launch in 2007, Accoya has been a trusted choice by manufacturers worldwide. From windows and doors to decking, cladding, and outdoor furniture, Accoya has been used in a wide range of demanding applications. Thanks to its durability and high performance, it stands out in architectural wood applications and extreme conditions. Its long lifespan and eco-friendly features make Accoya the ideal sustainable wood solution.

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ACETYLATION PROCESS

How Does the Modified Wood Process Work?

Hydroxyl Groups

Wood's Water Sensitivity

Natural wood contains water-attracting hydroxyl groups, which cause swelling and shrinkage. Over time, this leads to deformation and reduced durability.

Acetyl Groups

Natural Water Resistance

By replacing hydroxyl groups with acetyl groups, wood becomes more water-resistant and stable, reducing the risk of swelling and rot.

Acetylation

Chemical Transformation for Moisture Resistance

Wood is treated with acetic anhydride, which chemically changes its structure to enhance moisture resistance, minimize swelling, and extend lifespan.

Acetylated Wood

Maximum Durability & Sustainability

Accoya retains the same elements as natural wood but with increased acetyl content, resulting in outstanding durability, minimal maintenance, and superior dimensional stability.

accoya asetilasyon ahşap süreci asetil ahşap

Acetylated Wood Accoya

The Foundation of
Superior Durability

Accoya gains exceptional durability, dimensional stability, and high resistance to decay compared to traditional wood through an innovative modification process called acetylation. This advanced technology strengthens the wood’s cellular structure permanently, minimizing swelling, shrinking, and deformation. Thanks to this innovative process, Accoya becomes a long-lasting wood solution backed by a 50-year warranty.

Additionally, it stands out as an eco-friendly building material since it is produced from FSC® certified sustainable sources and contains no toxic substances. Developed with acetylation technology, Accoya sets a new standard in the construction industry in terms of sustainability, durability, and low maintenance requirements.