Enhance your sauna with the bold, modern look of 1×5 Thermo-Alder STS4 wall panels. The STS4 profile features narrow, angular grooves that create a sharp, linear appearance and can be paired with other profiles for striking contrast.

Thermally modified alder combines durability and stability with a warm brown tone, making it an excellent choice for stylish and long-lasting sauna interiors.

👉 STS4 = Tongue-and-groove sauna panel with a 4 mm shadow gap.

Price starts at 5.41 / LF