Aspen is a deciduous tree of the willow family, in the Malpighiales order. It grows across Europe and in most of Asia, as well as northern Africa. Aspen makes an ideal sauna material because it doesn’t secrete resin, create splinters, or get too hot. Its characteristic light tone and smooth texture give it an attractive look and make it perfect for painting. Thermally Modified Aspen is darker, and resists rot, shrinkage, and cupping for the ultimate long-lasting sauna material.

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    1X4 Thermo-Aspen STS4 T&G Wall Cladding – Thermally Modified Sauna Wood by Thermory

    $2.85$170.67

    Thermally 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.

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

    Thermory 5/4 SHP Thermo-Aspen Sauna Bench and Floor Wood

    $4.26$170.67

    Thermory Thermo-Aspen 5/4 (previously called 2×4) SHP Bench material is the perfect smooth, cool timber to feel against bare skin.  Because it doesn’t secrete resin, splinter or overheat, aspen makes for an ideal sauna material. The color of thermally modified aspen is an attractive golden brown.  Thermally modified wood resists rotting, expansion, contraction, warping, and cupping. Recommended Uses: Sauna benches, backrests, flooring, and skirting.

    These 1.1″ thick sauna bench boards are thick enough to build the frame, but we recommend using standard 2x4s for that.  See detail below.

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

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

    $3.49$174.47

    Thermory Thermo-Aspen 1×4 SHP Bench material is the perfect smooth, cool timber to feel against bare skin.  Because it doesn’t secrete resin, splinter or overheat, aspen makes for an ideal sauna material. The color of thermally modified aspen is an attractive golden brown.  Thermally modified wood resists rotting, expansion, contraction, warping, and cupping. 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 either horizontally or vertically.  See below for our framing suggestion.

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

    Thermo-Aspen 1×4 VIRE Wall Cladding – Sauna Wood by Thermory

    $4.65$279.96

    Add some life to your sauna with Thermory Vire 1×4, a unique contoured cladding for sauna walls and ceilings.  This is also a favorite for adjascent walls the sauna, or for building a hidden door into a wood wall!

    Thermo-Aspen 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 warm, modern sauna that’s design forward.

    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″.

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

    Thermo-Aspen 1×4 KYTE Wall Cladding – Motion Panels by Thermory

    $3.72$223.97

    Step up your game and build the sauna of your dreams with Kyte Cladding by Thermory.  The subtle bump out is easy to work with, but adds intrigue and a custom look to sauna walls and ceilings.  It’s great look for public saunas, or anyone who wants to something a little different than standard tongue and groove.

    Thermo-Aspen 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 modern sauna that still feels traditional.  Kyte walls can also be harnessed with basic lighting strips behind the benches to creat intrigue and shadow effects.

    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″.

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

    Thermo-Aspen 5/4×3 STEP Wall Cladding – Sauna Wood by Thermory

    $3.72$223.97

    Step up your game and build the sauna of your dreams with STEP Cladding by Thermory.  The broad, square grooves create a striking shadow effect adding depth and intrigue to any space.  It’s our go-to for vertical wall cladding in any high-end sauna build.

    Thermo-Aspen 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.

    At Sauna Marketplace, we make it easy with matching benches, backrests, bench skirts, vent hatches, floor grids, and more.

    Actual wall coverage is 2.2″ which completes the step.

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

    1X5 Thermo-Aspen STS4 Wall Cladding – Thermally Modified Sauna Wood by Thermory

    $3.93$236.00

    Wide plank Thermally 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 4.3″.

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

    Prebuilt Bench Skirt by Thermory

    $275.00

    It’s easier than ever to complete your sauna with a prebuilt sauna bench skirt in thermally modified Aspen or Alder.

    Wood Headrest in Thermal Aspen by Thermory

    $91.00

    Match your aesthetic of an all Thermory sauna with a classic thermo-aspen wooden headrest.  Aspen is an ideal sauna material because it doesn’t secrete resin, create splinters, or get too hot. The color of thermo-aspen is an attractive golden brown.

    Thermory Prebuilt Sauna Backrest

    $330.00

    Ready-to-install sauna backrests from Thermory – the quick and easy solution in good taste. Pairs perfectly with our prebuilt bench modules to make the DIY sauna easier with a more professional result.

    Thermo-Aspen Moulding 1×2 Transition T by Thermory

    $2.36$37.76

    Need longer boards than available by Thermory?  We make those transitions easy with this T moulding to avoid gaps with a professional look.  Common on walls and ceilings in commercial saunas.

    Note: These will arrive directly from Thermory USA in bundles of two in 7′ and 8′ lengths.

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

    Thermo-Aspen Moulding 1×1 SI Sauna Ceiling Trim By Thermory

    $2.00$62.40

    Thermory Thermo-Aspen 1×1 SI makes sauna building easier than ever.  These 0.59″x 0.71″ are ideal for concealing the gap and giving a professional finish to any wall to ceiling transition.  Make it easy, make it beautiful with Thermory 1×1 ceiling mouldings in Thermo-Aspen.

    Note: These will arrive directly from Thermory USA in bundles of four in 7′ and 8′ lengths.

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

    Prebuilt Sauna Bench Modules

    $467.00

    Prebuilt sauna bench modules make it easier than ever to create a high-end DIY sauna in any space. Expandable to any size, and taking corners seamlessly with degree fan-modules that be nearly impossible to build on site.

    Thermory Adjustable Air Hatch in Thermally Modified Aspen

    $69.00

    Adjustable Sauna Ventilation Hatch, .5″ x 5.2″ x 11″.  In Alder, Aspen, or Thermo-Aspen

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

    Thermo-Aspen Moulding 1×1 SHP Sauna Trim, Floor, and Bench Wood By Thermory

    $2.00$200.00

    Thermory Thermo-Aspen 1×1 SHP is a versatile sauna material meant for trim, benches, internal corner moulding, and sauna floors.  Aspen is a smooth, cool timber to feel against bare skin.  Because it doesn’t secrete resin, splinter or overheat, aspen makes for an ideal sauna material. The color of thermally modified aspen is an attractive golden brown.  Thermally modified wood resists rotting, expansion, contraction, warping, and cupping.

    These 0.83″ thick boards are ideal for creative projects and making your sauna design truly unique.

    Note: These can only be purchased in bundles of 10 in 7′ and 8′ lengths.

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