Poplar

Hybrid poplars are large, fast growing deciduous hardwood trees that thrive particularly in the sunnier parts of Britain.

We use British-grown poplar that has been transformed by thermal modification, a chemical-free process that reconfigures the cell structure of the wood by superheating it to 210°C. This natural method removes moisture, resin and other extractives, resulting in an extremely stable and durable rot-resistant material, ideal for standing up to the heat, water and steam of a sauna and certified to withstand the elements for over 30 years. Thermally modified woods were first developed specifically for use in saunas in Northern Europe and are widely regarded as one of the best timbers for use in sauna building. 

We use thermally modified poplar for the internal cladding of saunas because of its excellent heat and moisture resistance. Poplar has a camel brown colouring that compliments both the darker and lighter woods we use to build our saunas, and its distinctive silky grain pattern with regular 'birds-eye' pits offer interest and character.