raw timber before treatment

What is Accoya? Accoya wood logo

If you are planning a home renovation project, an extension or complete new-build, Accoya is something you will definitely want to consider. Accoya is a modified wood created from sustainably sourced FSC and PEFCTM certified woods. It is one of the world's leading high technology woods, manufactured using a non-toxic treatment. It is ideal for doors, windows, joinery, decking and cladding.

Treatment Process

Accoya is manufactured from softwood which has undergone acetylation - similar to the effect of putting wood into vinegar. This process turns the wood from a softwood into a hardwood and makes it more stable and durable.

Accoya Door with Stonebridge Ironmongery Lever Handle

Why Use Accoya For Your Doors & Windows?

When thinking about the best materials for your home, there are many factors to take into consideration including durability, and long term maintenance costs. So what are the benefits of Accoya wood over other traditional timbers?

Benefits of Accoya Wood

  • Guaranteed for 50 years above ground and 25 years in ground/freshwater.
  • Virtually rot proof and indigestible to many insects.
  • Improved stability means shrinkage and swelling are reduced by at least 75% and your doors & windows will open effortlessly all year round.
  • Ideal for painting/coating. The improved stability ensures coatings last twice as long compared to other woods.
  • The softwood timber takes 25 years to grow but once modified, has been given a 70 year minimum service life stated by TRADA. It is classified as a net CO2 absorber and a green building material.
  • Compared to other options - hardwood or plastics - Accoya is an environmentally, sustainable, renewable green choice with a low, if not negative carbon footprint.
  • Significantly reduced maintenance costs.
  • High strength.

If your budget will allow, Accoya wood is certainly the best option for your windows and external doors. Although more expensive than other traditional hardwood or plastic options, it is the best choice by far for long-term economy with low maintenance costs and durability.

Ironmongery for Accoya Wood

When choosing ironmongery for your Accoya wood doors and windows, you will need to ensure that the products are compatible. Accoya wood is acidic. Fitting the wrong type of ironmongery can result in metal corrosion and damage.

Stonebridge Ironmongery

Stonebridge Ironmongery has been certified the best in industry for its patented Armor-Coat™ finishes. No other steel product on the market is more corrosion resistant. All products come with a 5 year guarantee.

Stonebridge Ironmongery is the durable choice for today's homes. A range of stunning hand forged designs are available in a choice of satin steel or flat black colours.

  •  Lever Handles
  • Casement Window Furniture
  • Thumb Latches
  • Front Door Ironmongery
  • Hinges
  • Door Furniture Accessories and more...


Accoya Window with Stonebridge Ironmongery Casement Fastener

Accoya door and window with Stonebridge Lever Handle



Leave a comment

Please note, comments must be approved before they are published

1 comment

  • David on Nov 08, 2021

    Hi I’ve manufactured storm sash casement windows in Accoya wood could you send me any brochures of your products for windows and doors