About the product

Thermowood
Thermowood is produced by kiln-heating selected Scandinavian Redwoods to 212° Celsius, whilst being protected with steam, a thermal process which enhances the timber’s chemical and physical properties.

In external applications (BS EN 335 Use Class 3), Thermowood meets the requirements of Durability Class 2 (BS EN 350).

After thermal modification, the timber is naturally more durable and has greater stability over untreated or chemically-treated timber. This means Thermowood will suffer less shrinkage, swelling, cupping and distortion than ordinary wood.

Ideal for use as cladding, decking or for other outdoor applications, it does not need any toxic chemical preservative treatment.

Visually, the heat treatment process will give the timber an attractive deep brown appearance, which is consistent throughout the thickness, enabling further cutting, drilling or shaping without the need for additional preservative treatment.