Prosaunas Thermo-Spruce 1×4 T&G STS4 Wall Cladding

Prosaunas Thermo-Spruce tongue and groove 1×4 STS4 profile is ideal for sauna walls and ceilings, showcasing a smooth finish and rustic charm with its rich amber color and intricate knotty patterns. This thermally modified wood enhances stability and water resistance through an organic process that uses heat, steam, and pressure, making it far superior to untreated wood in resisting decay and pests. The elegant STP profile features narrow grooves between broad cladding boards with rounded edges, allowing for creative combinations with other profiles for a unique look. With over 55 years of experience and a commitment to quality, Prosaunas selects only the finest wood from Northern Europe and Canada, ensuring satisfaction with every order. Please note that wood sizes are provided in “nominal” measurements, which may differ from actual dimensions after drying and surfacing.