Timber Topics August 2025 | Timber Use Classes

Timber Topics August 2025 | Timber Use Classes

Date Published

29 July 2025

Document Type

Category

Author

Jennie Ward

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Summary

 Timber cladding has become a popular choice for both residential and commercial projects, making it essential that merchants are equipped to guide customers toward the most suitable options.

Not all pressure-treated timber is created equal. Though treated wood may appear similar at first glance, the level of preservative protection it carries can vary significantly. That’s because UK technical standards for timber preservation specify different levels of preservative loading and penetration based on how and where the timber will be used.

For timber and builders’ merchants, it’s essential to know which products have been treated and to clearly label their intended Use Class. Prominently displaying this information – both on signage and next to stocked timber – helps your customers select the right material for the job and ensures safer, more long-lasting results.

Key Information

Each month, TDUK’s Timber Topics offers top tips for merchants on the best timber products to stock and how best to upsell timber to their customers.