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ThermoWood has many applications and is generally used for demanding environments such as products effected by changing climatic conditions such as exterior cladding, windows, garden products and fascia boards. It can also be used for interior products such as saunas, furniture, flooring and interior panels.

See further information and pricing below



ThermoWood is manufactured using high temperatures ranging between 190°C/374°F and 212°C/414°F in a steam environment, this process thermally modifies the wood and changes its structure. It has a strict quality control in place through its processing, it is certified with KOMO quality certification and is also produced within the ISO 9001 quality system. During the process no chemicals are added so it only contains substances found in natural wood. Newly treated ThermoWood when exposed to rain will leak small amounts of compounds but due to its all natural processing no chemical leaching will occur, also the resin from the wood is removed during the steaming process and so the problem of resin leakage is eliminated.

ThermoWood has a much lower thermal conductivity this is because of the process used to produce the wood, in most cases the energy required for the process is produced by burning waste wood products such as bark. The main usage of the energy needed for the process is drying the ThermoWood which accounts for 80% of the heat energy used. The amount of electricity used in the production of this product is the same amount used in normal kiln drying of sawn timber. The treatment process used is patented and the trademark is owned by the International ThermoWood Association. The technical specifications of ThermoWood are defined in the CEN/TS15679 2008 Thermal Modified Timber, definitions and its characteristics.


Based on a quantity of 15m2 – 40m2: £31.08 per square metre

Based on a quantity of 41m2 – 66m2: £26.15 per square metre


For quantities over 66m2 please get in touch for our best prices!


The lead time for Thermowood Cladding is 10-14 days from the date of ordering (subject to availability) – bulk and trade discounts available!


Call us now on 01373 814 814 for a free quote or send us your enquiry here


*Prices exclude VAT, based on 135mm face coverage and are subject to change at short notice*