Info & Advice
UC4 Timber Preserving Treatment
The timber Use Class system
When choosing timber products, especially for outdoor use, it is essential to select the right grade of timber for the right job. The Use Class system is a British Standard classification of wood treatments that has specific treatment criteria that timber must meet for various purposes.
UC1 - wood that is used indoors with no chance of water contact
UC2 - wood that is used indoors with chance of occasional water contact e.g. bathrooms
UC3 - wo
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7th Apr 2021