Why Use Timber?

The best material to use for your greenhouse is a heavily debated topic – here’s our take on it

We’re in the business of making traditional greenhouses and traditionally they are made from timber. You get a warmth and solid feel from timber that you don’t get from metals and plastics and it insulates better. Some timbers, however, are susceptible to decay over extended periods outdoors and can twist and move when exposed to moisture and different temperatures. Accoya® is different. It is dimensionally very stable which means its size and shape alters very little as it absorbs and releases water vapour from the air around it. This makes it ideal for use in greenhouses where the environment can change regularly.

As a building material it’s carbon negative:


We use Accoya® wood for outstanding durability, stability and paint retention in all areas of our greenhouse framework. Accoya® is a non-toxic, high performance wood product produced by Accsys Group using their proprietary acetylation process. The modification procedure chemically alters the wood’s free hydroxyls into stable acetyl groups. This means the ability of the wood to absorb water is greatly reduced, rendering Accoya® dimensionally stable and extremely durable.

Accoya® Key Features:


Swelling and shrinkage reduced by 75% and more


Lasting 50 years above ground, 25 years in ground/freshwater

Class 1 durability

Virtually rot proof

70 year minimum service life stated by TRADA


Improved stability means coatings last up to two times longer

As a building material timber is carbon negative: the carbon absorbed from the atmosphere as a tree grows is locked away when it’s cut down. When a new tree is planted, more carbon is locked away. It also uses far less energy to convert a tree into a useful material. By comparison, it takes about 20 times more energy to produce a kilogram of aluminium than it does to produce a kilogram of timber.


Read more about Accoya® here

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"The whole process was very professionally conducted and the finished product has exceeded expectation."

Mark Benson