Spruce, aspen, alder and red cedar are the right species for sauna production. The quality of the sauna is subject to the highest grading and is supplied in grade A.Sauna profiles have to withstand high-temperature changes and high relative humidity in a very short period of time, it is supplied mainly in a Softline profile, which is adapted to these changes, and the sauna profiles on the walls and ceilings remain without visible dimensional changes, thanks to the extended lip of the softline profile. The wood for saunas is not surface-treated and is left natural.