Further Information
ThermoAspen sauna timber is a premium thermally modified timber developed for high-quality sauna interiors. The thermal modification process enhances the timber’s stability and creates a richer, more refined tone, while preserving the smooth, low-resin surface that makes aspen so well suited to sauna use.
Its elegant appearance and improved performance in high-temperature, changing-humidity environments make ThermoAspen an excellent choice for premium wall and ceiling cladding, bench boards, and other interior sauna details. It is particularly well suited to projects where durability, visual quality, and a more luxurious finish are all priorities.
Our STS4 profile is a premium sauna cladding profile with a crisp, clean-lined appearance that suits both modern and traditional interiors. Its precise shadow line detail creates a neat and elegant boarded finish, giving walls and ceilings a refined architectural look without being overly busy.
This profile is particularly well suited to high-quality sauna builds where a balanced combination of texture, order, and simplicity is desired. It works especially well in ThermoAspen and Aspen, highlighting the natural beauty of the timber while maintaining a professional and consistent finish throughout the space.
Suitable for interior sauna wall and ceiling applications, the STS4 profile should be installed with the correct support, ventilation cavity, and vapour control build-up for sauna construction. Matching bench materials, trims, and installation accessories are available separately.