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Pressure-treated timber for long term protection

Pressure-treated timber provides long term protection against fungal decay, rot and insect attack but does not prevent weathering and corrosion.

You will see an option on many of our fencing products, for example, to select Pressure Treated timber. This is a timber that has been treated in a vacuum with the latest generation TANALITH wood preservative. This renowned preservative gives a proven, outstanding performance, particularly for timbers intended for use in ground contact applications.

The process involves placing the timber into a treatment vessel using a vacuum & hydraulic pressure to force the TANALITH preservative deep into the structure of the timber. The resulting timber such as garden fence panels or timber fence posts often has performance warranties of up to 15 years.

pressure treated timber

Please see the pressure treatment video below;

Pressure-treated timber with TANALITH can be used with confidence in both above-ground and in-ground situations including construction, fencing, landscaping and engineering applications. When working with pressure-treated wood, we always suggest you wear gloves, eye protection and a dust mask when handling the wood. Also because of the preservatives in pressure-treated wood, it should never be burned.

Please note that it is often harder to paint pressure-treated timber as the very same treatment that allows the material to last outdoors can cause paints to crack and not adhere correctly.

The treated timber is light green in colour and is well suited to environmentally sensitive applications.


Challenge Fencing aim to offer the very best quality fencing & timber garden landscaping products that last longer and save you money in the long run.

Posted on June 8th, 2022 Posted In: Advice

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