What is Pressure Treated Timber?

Pressure treated timber involves preservatives being forced into timber. Our treated timber is put into our own onsite high-pressure treatment tank to ensure that our tanalised timber is prepared to fight infestation, rot and the elements. Treating timber reduces the effects of moisture, insects, and fungal decay, thereby extending the life of the product when used in an external application. 

Treated timber is often referred to as tanalised timber. It makes for a great option if used for outdoor construction endeavours such as fencing and garden landscaping projects, treated timber is excellent material to use as a base or foundation for your decking.

The treatment process:

The pressure treatment process begins with untreated timber being placed into our treatment tanks by our experienced team of treatment technicians.

Once the timber is inside the treatment tank, the door is closed and sealed, then a computerized process control system starts the pressure treatment process.

Step 1: A vacuum pump must first remove the air from the treatment tank.

Step 2: The treatment solution is then transferred from the storage tank to the treatment tank. Treatment solution usually consists of water and preservatives that are designed to help protect wood from fungal decay and termite attack. Treatments used in the timber industry have evolved over time to become kinder to the environment.

Step 3: Once the treatment solution has completely filled the tank, the next step is to pressurize the tank by using a pressure pump. The increases pressure in the tank forces the treatment solution deep into the timber.

Step 4: Once the pressure treatment cycle is complete, the next step is to transfer the remaining solution back into the storage tank.

Step 5: Initiate a final vacuum.

Step 6: Following the treatment, samples of treated wood are then tested for preservative penetration and retention.

For any further information surrounding treated timber, please don’t hesitate to reach out to one of our experienced team members who will be happy to answer any questions you may have.

And you can buy from our extensive range of treated timber by visiting our online shop HERE.