Thermo-alder is alder after the kiln: rich warm brown, tight grain, stable in heat and moisture. Thermory mills it for walls, benches, backrests and skirts. Want it darker? See dark thermo-alder.

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    Thermo-Alder Wall Paneling 1×5 STS4 – Sauna Wall and Ceiling Wood By Thermory

    Price range: $5.41 through $324.60

    Wide plank 1×5 thermo-alder is an exceptional sauna wall material that can be installed vertically or horizontally. The natural brown tone provides a classic, upscale sauna look. Thermally modified alder is one of the best-performing sauna woods, with a warm tone, unbeatable performance, and timeless appeal. The minimal expansion and contraction of Thermo-Alder allows for tight transitions without molding.

    This product has multiple variants. The options may be chosen on the product page

    Thermory 5/4×4 SHP Thermo-Alder Bench, Backrest, and Skirt Sauna Wood

    Price range: $6.09 through $243.00

    Thermo-Alder 5/4 SHP Bench material is a great choice for sturdy, warm-tone benches that are smooth to the touch. This mid-tone thermo-aspen is more brown and woodsy looking than thermo-aspen. Ideal for a more traditional sauna or cottage feel (an even darker, intensely modified thermo-alder is also available).

    5/4×4 Bench Boards are an easy and low-cost way to build a premium sauna bench framed with standard 2x4s and decked with these 1.1″ thick boards horizontally or vertically. See below for our framing suggestion.

    This product has multiple variants. The options may be chosen on the product page

    Thermory 1×4 SHP Thermo-Alder Bench, Backrest, and Skirt Sauna Wood

    Price range: $4.96 through $243.04

    Thermo-Alder 1×4 SHP Bench material is a popular choice for sauna benches, backrests, and skirting. This mid-tone is more brown and woodsy looking than thermo-aspen. Great for a more traditional sauna or cottage feel.

    1×4 Bench Boards are an easy and low-cost way to build a premium sauna bench framed with standard 2x4s and decked with these.83″ thick boards horizontally or vertically. See below for our framing suggestion.

    This product has multiple variants. The options may be chosen on the product page