What Is Accoya Wood? A Comprehensive Guide To Its Features & Benefits

Accoya wood is a high-performance, sustainable wood product renowned for its exceptional durability and stability. Used in both domestic and commercial applications, it is ideal for cladding, doors, and windows.

This comprehensive guide explores Accoya wood’s unique properties and benefits, helping you make informed decisions for your upcoming projects in Kent and its surrounding areas. Our expert joiners and carpenters are also here to help you with expert advice and quality joinery services tailored to your needs. Call 01959 522 981 or email info@newlandsjoinery.com today.

What Is Accoya Wood?

Accoya wood is modified timber produced from fast-growing, sustainably sourced softwood. Through a proprietary acetylation process, its cellular structure is transformed, enhancing its performance.

This treatment renders it more durable and dimensionally stable than traditional wood.

“From made-to-measure windows and doors from Accoya Wood, trust our specialist team at Newlands Joinery. We’ll help you with bespoke, handcrafted joinery!”

Diving Deep – How Is It Made?

Accoya Wood is produced through a patented acetylation process that fundamentally transforms the wood’s properties. This involves treating sustainably sourced softwood, typically radiata pine, with acetic anhydride, a derivative of acetic acid.

During acetylation, the wood’s free hydroxyl groups are replaced with acetyl groups, significantly reducing its ability to absorb water. This chemical modification alters the wood at a molecular level, increasing its dimensional stability and resistance to rot, pests, and environmental conditions.

The process is non-toxic and environmentally friendly. It ensures that the wood remains safe and sustainable while achieving superior performance characteristics.

What Are Its Key Features?

1. Rot Resistance

Accoya wood excels in rot resistance due to its acetylation process, which alters the wood’s cellular structure, making it inhospitable to fungi and insects. This modification greatly reduces the wood’s moisture content and susceptibility to decay, even in harsh weather conditions.

As a result, Accoya Wood has a lifespan of up to 50 years above ground and 25 years in freshwater or underground environments. This exceptional durability reduces the need for frequent replacements and maintenance, making it a cost-effective and sustainable choice for outdoor applications like decking, cladding, and joinery.

2. Dimensional Stability

One of Accoya Wood’s standout features is its exceptional dimensional stability. The acetylation process significantly minimises the wood’s tendency to swell, shrink, or warp due to changes in moisture and temperature. This ensures that structures built with Accoya maintain their integrity and appearance over time, with tight joints and smooth surfaces.

This is particularly beneficial for applications requiring precise tolerances, such as window frames, doors, and other joinery. Builders and homeowners alike value this stability, as it ensures long-term performance and reduces the likelihood of warping or other structural issues.

3. Moisture Resistance

Accoya wood’s moisture resistance is a key advantage, stemming from its acetylated cell structure, which reduces water absorption. This property makes Accoya highly resistant to warping, swelling, and shrinking, even in damp or humid conditions.

The wood’s enhanced moisture resistance also contributes to its longevity and durability, making it an ideal material for outdoor and marine applications.

4. Sustainability

Accoya Wood is produced from fast-growing, sustainably managed forests, often using species like radiata pine. The acetylation process itself is environmentally friendly, involving non-toxic chemicals that do not harm the environment.

Additionally, the long lifespan of this wood means that fewer trees need to be harvested over time, which reduces the overall environmental impact. Its exceptional durability and resistance to decay further lessen the need for chemical treatments or coatings.

Therefore, choosing Accoya supports sustainable forestry practices and contributes to a reduced carbon footprint.

5. Workability

Despite its enhanced properties, Accoya Wood remains easy to work with. It can be machined, cut, and finished using standard woodworking tools and techniques.

Accoya’s consistent quality and predictable performance allow craftsmen to achieve high precision and fine detailing in their projects. Whether used in bespoke furniture, windows, doors, or cladding, Accoya Wood offers the flexibility needed for both standard and custom designs, ensuring excellent results every time.

Should You Choose Accoya Wood For Your Bespoke Doors And Windows?

Accoya Wood is an excellent choice for bespoke doors and windows due to its superior durability and stability. Its acetylation process ensures that the wood resists rot, insects, and moisture, leading to long-lasting performance with minimal maintenance.

Moreover, its outstanding dimensional stability prevents warping, swelling, or shrinking, ensuring that doors and windows retain their shape and functionality over time. Additionally, Accoya Wood offers excellent thermal insulation, improving energy efficiency in buildings.

Its workability allows for precise, intricate designs for custom joinery projects. Thus, if you’re considering Accoya for your doors and windows, rest assured that it ensures a high-quality, enduring product.

Call our experts on 01959 522 981 to learn more about Accoya Wood and avail of our expert joinery services.

Making The Right Choices With Accoya Wood

1. Paint

Teknos paint is highly recommended for use with Accoya Wood. Teknos offers advanced paint and coating solutions, providing superior protection and durability. It is extensively tested and ensures long-lasting performance.

2. Hardware

Accoya Wood contains organic acids similar to oak and western cedar, which can accelerate corrosion in metals under moist conditions. Therefore, selecting suitable hardware is crucial.

Coastal Group provides a range of hardware specifically designed for use with Accoya, ensuring long-lasting functionality and aesthetics.

3. Metal

High-quality stainless steel is the best-performing metal for use with Accoya Wood in damp or exposed conditions. To prevent corrosion, ensure metals are coated or separated from the wood. This practice prolongs the life and appearance of your doors and windows.

How Can We Help?

Newlands Joinery offers bespoke, handcrafted windows, doors, interiors, and furniture for both domestic and commercial customers in Kent and its surrounding areas.

As partners and recognised installers of Accoya Wood, we craft bespoke sash windows, bay and casement windows, and wooden doors designed to last and withstand the test of time.

Our expertise ensures that you receive high-quality, durable products tailored to your specific needs.

Want to discuss bespoke windows and doors made from Accoya? Call 01959 522 981 now.


Accoya Wood is a superior choice for doors and windows, providing unmatched durability, stability, and sustainability. Its unique properties and benefits make it an excellent material for both domestic and commercial projects.

Partner with our experts at Newlands Joinery – we will ensure that you get the most out of this versatile and long-lasting wood. Contact us today to discuss your requirements.

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