Benefits of pressure treated timber?

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So you're curious about pressure treated timber, here are the basics.

When it comes to buying a shed, summerhouse or just a simple bike store, many choices are available. The most common thing you will come across is the phrase "pressure treated".

...So what does it actually mean?

Pressure treatment of timber is the process in which the solution is forced directly into the wood via air pressure. 

What is the process?

The process of pressure treating timber firstly starts of with the drying of the natural timber. This involves using an air flow or a kiln which removes moisture from the wood ready for pressure treatment or officially as it's known - vacuum pressure impregnation.

Once the timber is ready, it's then placed into a pressure treatment tank and the air inside is removed via a vacuum system.  The tank is then flooded with the timber preservative solution under high pressure. Which forces the solution deep within the timber walls, much further than any hand applied solution can do - This results in a deep impregnation of the timber.

What are the benefits?

The main benefit of pressure treated timber is that it becomes rot resistant, this is essential for a product that is generally kept outside in the elements. Furthermore it is insect repellent, this means those nasty garden critters will have a hard time causing damage to your wood.

How long will pressure treated timber last?

Generally speaking, pressure treated timber last an expected life expectancy of 15 years. Of course, this all depends on the conditions in which the timber is placed in. If looked after with regular care, it can last much longer.


We hope this brief guide gives you some helpful insight into the fundamentals of pressure treated timber and aides you when deciding what timber products to choose.

Lion Garden Buildings 
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