1X4 Black Thermo-Spruce STS4 T&G Wall Cladding – Brushed & Waxed Black Sauna Wood by Thermory
$4.27 – $251.00The Bold New Statement in Sauna Design
Introducing Black Thermo-Spruce – the dramatic, sophisticated sauna wood that’s revolutionizing modern sauna aesthetics. This isn’t paint or stain; it’s the natural beauty of spruce transformed through Thermory’s intensive thermal modification process, creating a rich, deep black that’s as durable as it is stunning.
Wire-brushed to perfection, each board reveals the natural grain patterns that make every installation unique. The textured surface doesn’t just look incredible – it feels amazing under your fingertips, adding a tactile dimension to your sauna experience. Finally, a true black sauna wood at a price that makes sense.
5/4 x 4 SHP Alder Bench, Backrest, and Skirt Sauna Wood
$4.32 – $172.65Alder 1×4 SHP Bench material is the classic choice for a timeless sauna. With subtle yet appealing tone and aroma, Alder is the perfect natural sauna material with moisture wicking properties. Recommended Uses: Sauna benches, backrests, and skirting.
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.
Thermory 1×4 SHP Alder Bench, Backrest, and Skirt Sauna Wood
$3.52 – $176.13Alder 1×4 SHP Bench material is the classic choice for a timeless sauna. With subtle yet appealing tone and aroma, Alder is the perfect natural sauna material with moisture wicking properties. Recommended Uses: Sauna benches, backrests, and skirting.
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.
1X4 Thermo-Aspen STS4 T&G Wall Cladding – Thermally Modified Sauna Wood by Thermory
$2.85 – $170.67Thermally Modified Aspen (TASP) is an elegant wall and ceiling cladding for saunas that has been meticulously processed using only heat and steam by Thermory, the global leader in Thermal Modification. The result is a darkened, smooth wood that won’t shrink, warp, cup, or rot when properly installed. Choose this profile for a classic sauna look that’s more refined than typical North American saunas.
Working with Tongue and Groove STS4 is a delight for contractors and DIY Sauna Builders alike. We’re not exagerating that every builder we work with has found the quality and consistency to be truly remarkable. At Sauna Marketplace, we make it easy with matching benches, backrests, bench skirts, vent hatches, floor grids, and more.
Actual wall coverage is 3.1″ to 3.2″ depending on installation.
Thermo-Magnolia Wide Sauna Bench Board 5/4×8 SHP
$13.62 – $533.90These extra-wide bench boards in exquisite thermo-magnolia will add a touch of comfort while enhancing the look of your home. The rich, dark shade is achieved by thermal modification giving magnolia an exclusive, stately finish. Create your dream sauna or high-end sauna space.
If you want to something a little ‘extra’, we think this is the most premium sauna bench material on the market. Magnolia has attractive grain patterns, low thermal conductivity, and resists warping and cupping making it perfect as a wide-plank premium sauna bench material that won’t splinter. This is also the widest plank sauna bench material available in North America, coming in at 7.3″ of actual width.
Dark Thermo-Alder 5/4×4 SHP Bench, Backrest, and Skirt Sauna Wood – Intense Modification by Thermory
$4.84 – $170.37Dark Thermo-Alder 5/4 SHP Bench material is a perfect choice for sturdy, warm-tone benches that are smooth to the touch. This dark-tone thermo-aspen is more brown and woodsy looking than thermo-aspen. Ideal for a more traditional cabin-sauna or cottage feel.
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.
Dark Thermo-Alder Wall Paneling 1×5 STS4 – Intense Thermal Modification Sauna Wood by Thermory
$4.73 – $278.12Thermal modification darkens wood, and intense thermal modification darkens wood even more. It also takes the benefits of thermal modification to the next level.
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 Dark Thermo-Alder allows for tight, seamless transitions without molding.
Thermo-Spruce Sauna Bench and Floor Wood – 5/4 SHP Sauna Wood By Thermory
$2.95 – $173.46One of our missions at Sauna Marketplace is to make it more affordable to build a DIY sauna without compromise. Sauna bench wood has always been a barrier, but this 5/4 SHP Bench profile from Thermory makes it easier than ever.
Intense natural modification using heat and steam alters this Nordic Spruce at a cellular level, resulting in a more durable and healthy choice than Western Red Cedar at a fraction of the price. Unlike WRC, this Thermo-Spruce won’t warp, expand, contract, or cup.
Recommended Uses: Sauna benches, backrests, flooring, and skirting. These 1.0″ thick sauna bench boards are thick enough to build the frame, but we recommend using standard 2x4s for that. See detail below.
1X4 Thermo-Spruce STS4 T&G Wall Cladding – Thermally Modified Sauna Wood by Thermory
$1.73 – $101.72Thermo-Spruce 1×4 by Thermory is the most affordable way to achieve beautiful thermally modified wood walls in your sauna. Popular in Finland for it’s thermal performance, Nordic Spruce is also a sustainable choice. We love the rustic look and unique, tight knots that look like wings. Thermo-Spruce gives a pleasant, mild aroma with far lower VOC content than Western Red Cedar. Natural thermal modification changes the wood at a cellular level to resist rot, decay, warping, and cupping.
Actual wall coverage is 3.1″ to 3.2″, depending on installation. Thermo-Spruce pairs well with Thermo-Aspen benches.
Thermory 5/4×4 SHP Thermo-Alder Bench, Backrest, and Skirt Sauna Wood
$5.92 – $232.06Thermo-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 cabin-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.
Thermory 1×4 SHP Thermo-Alder Bench, Backrest, and Skirt Sauna Wood
$4.96 – $243.04Thermo-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 cabin-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.
Thermo-Alder Wall Paneling 1×5 STS4 – Sauna Wall and Ceiling Wood By Thermory
$3.56 – $209.00Wide 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, seamless transitions without molding.
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