Accoya Timber

Accoya is a revolutionary high-performance wood, created through a patented acetylation process that permanently modifies the cellular structure of the timber, making it virtually unaffected by water or environmental degradation. While other conventional wood treatments only modify the surface, Accoya deeply modifies the wood. Since its introduction in 2007, this proven technology has gained the trust of architects, manufacturers, and homeowners from around the world. More than 500,000 landmark projects demonstrate the exceptional performance of Accoya.
At its core, Accoya is wood uncompromised combining the natural beauty and workability of timber with the durability and stability previously available only in synthetic materials. Backed by over 20 years of innovation and experience, Accoya is the global leader in high-performance wood.

How is Accoya Made?
The Acetylation Process
The manufacturing process at Accoya begins with raw materials from sustainable timber supplied from FSC-certified forests. By employing a proprietary acetylation treatment, the wood is chemically modified right down to the basic cell structure.

• The Process:
  Wood is treated in a controlled environment with acetic anhydride
• Acetyl groups penetrate and bond with the cellular structure of wood.
• This permanent modification fills the cell cavities and cross-links the wood polymers.
• The result is a wood product with properties fundamentally changed, which cannot revert.

Key Benefit: The treated wood can no longer absorb moisture, the single biggest contributor to swelling, shrinking, warping, and decaying in traditional wood. This is a permanent chemical change, demonstrated and supported by more than twenty years of field performance.
Quality Standards

The manufacturing process is carefully controlled to ensure that every board meets the highest possible standards. Accoya remains structurally sound with virtually no movement before, during, and for decades after installation. The result is wood that arrives straight and stays straight, even in harsh climates.

Where Can You Use Accoya?

Residential Applications

Garden Furniture & Outdoor Living
Weather-resistant outdoor furniture with minimal upkeep
Coastal and alpine environments where wood normally fails.
Furniture that stays beautiful for decades

Cladding

• Stunning exterior wall systems with design flexibility
• Wide board options with versatile surface texturing
• Sawing, brushing and charring techniques for custom aesthetics
• Variety of coatings available for any design vision.
• Superior finish quality with fewer installation issues

Decking

• Highly durable deck surfaces resistant to cracking in any climate
• Superior stability allows smaller gaps and perfectly even surfaces.
• The most barefoot-friendly decking option available
• Low maintenance, no need for coatings, or frequent repairs.
• Looks perfect every year without exception
  

Windows & Doors

• Beautiful wooden windows and doors with long service life
• Superior thermal performance for energy efficiency
• Fixed-width sections that reduce waste
• Lighter compared to traditional hardwood options
• Endless design possibilities with various coating options available.

Summer Houses & Residential Structures

• Sleek, modern architectural designs
• Structures blending in harmoniously with nature
• Reliable performance in harsh climates

Commercial Applications

Commercial Building Systems
Where once steel and concrete were the only option, Accoya now delivers

• Unique combination of structural stability and design flexibility
• Natural beauty of wood with reliable performance
• It is ideal for architectural designs that involve mixed materils
  
  Structural & Landmark Projects
  High-Performance Structures
• Floating bridges and architectural sculptures
• Spectacular, curved, and complex designs
• Projects that require integration into natural surroundings
• Durable applications, combined with low environmental impact.
• Structural uses benefitting from enhanced strength and density