Specifying Treated Timber

Specify Smart With The Tanalised® Timber Guide

A popular saying is not to judge a book by its cover. We think the same applies to the term ‘green treated timber’ when used in the context of pressure treated wood.

Also commonly referred to as ‘Tanalised Timber’, not all timber is treated to the same standard.  To help the specification of fit-for-purpose treated timber, we have produced the Tanalised® Timber Smart Guide.


What makes quality treated timber?

A  number of factors contribute to the overall performance of industrially treated timber. The list below provides a summary - for more information download a copy of the Tanalised® Timber Smart Guide.

  • Timber species - some softwood timber species are more receptive than others to timber treatment.
  • End-use application (Use Class) - for fence posts it's crucial that you only specify timber that is treated to Use Class 4 (in ground contact).
  • How the timber is prepared prior to treatment - before the timber is treated it's moisture content needs to be at a specific level to allow the wood preservative to penetrate sufficiently during the pressurised treatment.
  • The timber treatment process - the treater should have quality controls in place to check that the timber is treated to the standard expected.
  • The wood preservative used - to specify the original Tanalised® Timber, make sure that the timber has been treated with Tanalith® E.

Click here to view the Tanalised® Timber Smart Guide.


Tanalised Timber Smart Guide

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