Thermowood Cladding Thermowood- D Thermodified Timber

  • £29.95
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Durable and low maintenance Thermowood® cladding

​​​​​​ThermoWood® is produced by heat treating Finnish grown pine and spruce to temperatures in excess of 200 degrees centigrade. During the heat treatment, chemical and structural changes occur within the timber which alter and improve some of its basic characteristics. The resulting product is an altogether more durable and stable timber, an ideal cladding material for use in exposed areas such as external walls.

Visual quality

The colour of ThermoWood-D (pine) is affected by the treatment temperature and time. The higher the temperature, the darker the appearance.

ThermoWood® cladding profiles




30 year service life

Uncoated ThermoWood-D (pine) exterior cladding can provide a 30-year desired service life. This calculation is based on a number of conditions including: the quality of the workmanship at the time of installation, and the exposure of cladding to the weather including location, elevation and design. If coated, over the life of the product, ThermoWood-D will have a 60-year desired service life, providing the coating is maintained in-line with the coating manufacturer recommendations over the service life of the product*.


Price is Per square metre including vat for claddings and per metre run for the trims and batten

Shiplap and TGV size- ex 25mm x 125mm, finished size of 20mm x 118mm- 108mm face cover

Channel- ex 25x150 , finished size 20x141- 131 face cover

Batten- 42mm x 42mm Finished Size 

Expansion Trim 42mm x 42mm finished size