Use Class Summary

The eventual end use of preservative treated timber is classified into one of 5 main categories. These Use Classes, defined in EN 335, are based on the potential threat to the timber from decay or insect attack its eventual application.

For more information see the downloadable document.

Latest News:September 23rd 2021

Tanasote® – celebrated for its innovative approach to wood preservation

Modern-day alternative to creosote recognised by prestigious UK timber industry awards