Sauna Materials
Showing 1–50 of 103 resultsSorted by price: low to high
PROSAUNAS Spruce 1X4 T&G STS4 Wall Cladding – Sauna Wood
Price range: $1.33 through $18.68The most economical real sauna wood we carry, and the traditional one. Natural Nordic Spruce, 1×4 smooth tongue-and-groove, the wood Finland has lined saunas with for generations. Light tone, tight characterful knots, a clean mild scent. It is not thermally modified, so it moves a little more than our thermo woods through the heat-and-cool cycle. We carry it for the budget build and the honest Finnish look. Sold by the linear foot, in lengths up to 14 ft.
PROSAUNAS Alder 1X2 SI Inside Corner Trim – Sauna Wood
Price range: $1.36 through $10.90Corners make or break a cladded room. This is the alder SI inside corner trim: 0.55" thick by 1.18" wide (14mm x 30mm), milled in Estonia to close out the inside corners where two cladded walls meet. Without it, the cladding ends look ragged. With it, the room reads furniture-quality. Natural alder, warm reddish-brown, E1 certified, and at $1.36 per linear foot it’s the lowest-cost piece in the alder family. Sold by the linear foot in 1 and 8 ft lengths.
PROSAUNAS Thermo-Aspen 1X2 SI Inside Corner Trim – Sauna Wood
Price range: $1.58 through $12.65Inside corners are where a finish job either looks done or looks almost done. The thermo-aspen SI inside corner trim, 0.55″ thick by 1.18″ wide, fits into the 90-degree seam where two cladded walls meet and gives you a clean, furniture-quality line instead of a butt joint. The thermal modification means the golden-brown color runs all the way through, so a cross-cut end won’t show pale raw wood. No resin, no splinters. Match it to your thermo-aspen walls and benches and the room reads as one continuous material. Sold by the linear foot.
PROSAUNAS Aspen 1X2 SI Inside Corner Trim – Sauna Wood
Price range: $1.61 through $12.83Inside corners are where most DIY sauna cladding jobs show their work. The aspen 1X2 SI inside corner trim is the piece that covers the raw edges where two clad walls meet at an interior corner: 14mm thick, 30mm wide, in pale natural aspen that matches the wall boards. Simple, clean, and it makes a corner look like it was planned rather than improvised. Sold by the linear foot in 1 and 10 ft lengths at $1.61/lf, milled in Estonia.
Thermo-Aspen Moulding 1×1 SHP Sauna Trim, Floor, and Bench Wood By Thermory
Price range: $2.00 through $200.00Thermory 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.
Thermo-Aspen Moulding 1×1 SI Sauna Ceiling Trim By Thermory
Price range: $2.00 through $92.40Thermory 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.
Alder Moulding 1×1 SHP Sauna Trim, Floor, and Bench Wood By Thermory
Price range: $2.00 through $160.00Alder 1×1 SHP is a versatile sauna material for trim, benches, internal corner molding, and sauna floors. Cover any inward-facing corners in your sauna with this elegant moulding profile in natural alder. Alder is a hardy and water-repellent wood that doesn’t overheat, with a beautiful reddish tone and a pleasant texture.
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.
Alder Moulding 1×1 SI Sauna Ceiling Trim By Thermory
Price range: $2.00 through $64.00Alder 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 Alder.
Note: These will arrive directly from Thermory USA in bundles of four in 7′ and 8′ lengths.
PROSAUNAS Aspen 1X1 S4SEE SHP Moulding & Trim – Sauna Wood
Price range: $2.13 through $17.09Small piece, big finish difference. The aspen 1×1 S4SEE is a 21mm square moulding, surfaced smooth on all four sides with eased edges, and it’s what turns a clad sauna wall from a room with boards on it into a room that looks finished. Cap a horizontal run, cover a ceiling-to-wall seam, hide a gap where wall meets bench frame: this is the piece. Pale aspen, resin-free, cool to the touch. Sold by the linear foot in 1 and 10 ft lengths at $2.13/lf, milled in Estonia.
PROSAUNAS Thermo-Spruce 1X4 T&G STS4 Wall Cladding – Sauna Wood
Price range: $2.35 through $32.96The most economical real sauna wood we carry, and the traditional one. Natural Nordic Thermo-Spruce, 1×4 smooth tongue-and-groove, the wood Finland has lined saunas with for generations. Light tone, tight characterful knots, a clean mild scent. It is not thermally modified, so it moves a little more than our thermo woods through the heat-and-cool cycle. We carry it for the budget build and the honest Finnish look. Sold by the linear foot, in lengths up to 14 ft.
Thermo-Aspen Moulding 1×2 Transition T by Thermory
Price range: $2.36 through $37.76Need 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.
1X4 Thermo-Spruce STS4 T&G Wall Cladding – Thermally Modified Sauna Wood by Thermory
Price range: $2.50 through $150.00Thermo-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.
PROSAUNAS Aspen 1X2 T-Moulding Moulding & Trim – Sauna Wood
Price range: $2.54 through $20.31The T-moulding is the piece most people forget to order until the bench is built and there’s an exposed edge staring back at them. This is the ProSaunas aspen 1×2 T-moulding: 17mm thick, 32mm wide, in pale natural aspen that matches our cladding and bench boards. It covers raw edges cleanly, sits flush where two surfaces meet at a seam, and disappears into the room the way good trim should. Sold by the linear foot in 1 and 10 ft lengths at $2.54/lf, milled in Estonia.
PROSAUNAS Western Red Cedar 1X4 STK T&G V2E Wall Cladding – Sauna Wood
Price range: $2.64 through $21.16The knottier option, and honestly the one with more character. This is Western Red Cedar 1×4 tongue-and-groove V2E wall cladding in STK grade, milled in Canada with natural tight knots and a warm reddish tone. At 0.70″ thick with a 2.95″ coverage width, it goes up fast and smells like every sauna movie you’ve seen. STK means you’ll have knots: they’re tight, they’re natural, and they give the room a cabin-honest feel that clear boards don’t. We carry a clear VG grade too if that’s your look. One heads-up: like all untreated cedar, this will move a little through the heat-and-cool cycle over the years. Sold by the linear foot.
PROSAUNAS Alder 1X2 UK Door Trim – Sauna Wood
Price range: $3.07 through $24.57Every sauna door looks better with this on it. The alder 1×2 UK door trim, 0.47" thick by 1.65" wide (12mm x 42mm), milled in Estonia from natural alder for clean, finished doorway edges. This is the piece that makes the transition from framing to cladding look intentional. Warm reddish-brown alder tone, fine grain, E1 certified. Water-repellent and cool to the touch. It’s a finishing detail, not a structural piece, but a sauna doorway without it reads unfinished. Sold by the linear foot in 1 and 8 ft lengths.
PROSAUNAS Alder 2X2 VA Outside Corner Trim – Sauna Wood
Price range: $3.07 through $24.57Outside corners are the exposed edges, which means they’re what people see and touch first. This is the alder VA outside corner trim: 1.1" square (28mm x 28mm), angle-moulded to wrap outside corners cleanly in natural alder. Same warm reddish-brown tone as the rest of the ProSaunas alder family, milled in Estonia, E1 certified. Beefier than the inside corner piece at the same 1.1" section, which makes sense: outside corners take contact. At $3.07 per linear foot it finishes the room where the finish matters most. Sold by the linear foot in 1 and 8 ft lengths.
PROSAUNAS Aspen 1X2 UK Door Trim – Sauna Wood
Price range: $3.07 through $24.57Every clad sauna room has a door, and the door surround is where the cladding either reads finished or reads unfinished. This is the ProSaunas aspen 1×2 UK door trim: 12mm thick, 42mm wide, in natural aspen that matches the wall boards. It wraps the door opening cleanly and covers the raw edge of the cladding at the reveal. Aspen stays cool, has no resin, and takes paint or a clear finish equally well. Sold by the linear foot in 1 and 10 ft lengths at $3.07/lf, milled in Estonia.
PROSAUNAS Aspen 2X2 VA Outside Corner Trim – Sauna Wood
Price range: $3.07 through $24.57Outside corners on a sauna wall are a small detail with a noticeable finish impact. The aspen 2×2 VA outside corner trim wraps the convex corner where two clad surfaces meet on the exterior angle: 28mm on both faces, in pale natural aspen that matches the wall boards. It gives the corner a finished look and protects the raw edge of the cladding at the same time. Sold by the linear foot in 1 and 10 ft lengths at $3.07/lf, milled in Estonia.
Thermory Thermo-Aspen 2×2 VA
Price range: $3.15 through $31.50PROSAUNAS Thermo-Aspen 1X2 UK Door Trim – Sauna Wood
Price range: $3.15 through $25.23The detail that ties the room together. Thermo-aspen door trim in the UK profile finishes the gap between your cladding and the door frame with the same golden-brown wood you used on the walls. Thin at 0.47″, wide enough at 1.65″ to cover a clean reveal. No resin, no splinters, cool to the touch. Because it’s thermally modified, the color runs all the way through, so a mitered corner or an end cut won’t show pale raw wood. If you’ve gone with thermo-aspen walls and benches, this is the piece that makes it look intentional.
PROSAUNAS Thermo-Aspen 2X2 VA Outside Corner Trim – Sauna Wood
Price range: $3.15 through $25.23An outside corner with no raw edge showing. The thermo-aspen VA outside corner trim, 1.1″ on both faces, wraps the 90-degree exterior angle where two cladded walls meet and gives you a clean, mitered line in matching wood. Thermally modified aspen, so the golden-brown color runs all the way through, cut ends look the same as the face, and the piece won’t swell or bow in a wet sauna environment. No resin, no splinters. If you have a sauna room with an exterior corner (a bump-out, a partition, a two-room build), this is what goes there. Sold by the linear foot.
PROSAUNAS Thermo-Aspen 2X2 S4SEE SHP Moulding & Trim – Sauna Wood
Price range: $3.34 through $33.40Moulding that actually does something. The thermo-aspen 2×2 S4SEE SHP moulding at 1.1″ x 1.63″ is the piece you reach for when you need to cap a bench edge, cover a gap at the ceiling, frame a light channel, or add a clean horizontal break on a cladded wall. It’s the same thermal modification as the rest of our thermo-aspen line: heat and steam, no chemicals, golden-brown color all the way through, no warp, no resin, cool under bare skin. Available up to 10-foot lengths. Sold by the linear foot.
PROSAUNAS Alder 2X2 S4SEE SHP Moulding & Trim – Sauna Wood
Price range: $3.48 through $34.73The trim piece that pulls a room together. This is the alder 2×2 S4SEE moulding: 1.1" square (28mm x 28mm), surfaced four sides with eased edges, milled in Estonia from natural alder. Use it to cap bench edges, frame out a heater enclosure, or add a furniture-quality line wherever you need one. Warm reddish-brown tone matches the alder bench and cladding family exactly. At $3.48 per linear foot it’s the least glamorous piece in the room, but the room looks noticeably better with it. Sold by the linear foot in 1, 8, 9, and 10 ft lengths.
PROSAUNAS Aspen 2X2 S4SEE SHP Moulding & Trim – Sauna Wood
Price range: $3.60 through $36.0728mm square, eased edges, four smooth faces. The aspen 2×2 S4SEE moulding is the heavier finishing piece: thicker than the 1×1 at 1.1″ square, with enough visual presence to anchor a ceiling line or a bench-frame transition. Same pale natural aspen as the cladding, so it blends rather than competes. The detail that separates a lined room from a finished room is usually this piece, or its absence. Sold by the linear foot in 1 and 10 ft lengths at $3.60/lf, milled in Estonia.
1X4 Alder STS4 T&G Wall Cladding – Sauna Wood by Thermory
Price range: $3.62 through $217.20Coveted in Finland and worldwide, European alder brings timeless elegence to your sauna with its distinctive reddish tone and inviting texture. This premium 1×4 natural profile offers excellent thermal properties (0.12 W/m·K) and sound absorption, creating the ideal surroundings and conditions for healing heat. Completely untreated and E1 certified for ultra-low emissions, this alder tongue and groove cladding maintains its warm, honey-like fragrance while providing the perfect balance of durability and comfort. Choose this medium-toned Estonian-crafted wood for an authentic sauna experience that harmonizes tradition with European quality standards.
1×4 STS4 By Thermory might just be nature’s perfect sauna companion.
Alder 5/4×3 STEP Wall Cladding – Sauna Wood by Thermory
Price range: $3.72 through $145.82Step up your game and build the sauna of your dreams with Alder 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.
Alder is a popular and timeless sauna wood with natural water repelling properties. It’s a medium tone with reddish tints and a subtle honey-like aroma. At Sauna Marketplace, we make it easy to build an Alder sauna with matching benches, backrests, bench skirts, vent hatches, floor grids, and more.
The actual wall coverage is 2.2″, which completes the step.
PROSAUNAS Alder 2X3 S4SEE SHP Bench, Backrest & Skirting – Sauna Wood
Price range: $4.00 through $40.07Sit on it for five minutes and you’ll understand why Finland has been using alder on benches for a hundred years. This is the 2×3 S4SEE bench board in natural alder, milled in Estonia to 1.1" thick by 2.56" wide, surfaced four sides with eased edges. Warm reddish-brown tone, fine grain, a faint honey scent when the room heats up. Water-repellent and stays cool against bare skin. Good clear cedar now runs nearly three times the price; alder is the honest alternative for a timeless Finnish room. Sold by the linear foot in lengths from 1 to 10 ft.
PROSAUNAS Hemlock 1/2X4 VG T&G V2E Wall Cladding – Sauna Wood
Price range: $4.00 through $40.07Pale walls, tight joints, almost no smell. This is Hemlock 1/2×4 VG T&G V2E wall cladding: clear A+ grade, 0.44″ thick, 3.49″ of coverage per board, V-joint profile, milled in Canada. If cedar is the sauna your grandfather built, hemlock is the sauna you’d design today. Quiet, bright, modern. It’s the cladding choice for a contemporary build that wants clean pale walls and a room that doesn’t smell like the wood. Ben likes the hemlock look. The honest note: hemlock walls will shift to a slight yellow tint under artificial light over time, more noticeable in rooms without natural light. For the brightest long-term pale look, our thermo-aspen cladding stays truer. Sold by the linear foot.
PROSAUNAS Alder 1X4 T&G STS4 Wall Cladding – Sauna Wood
Price range: $4.00 through $40.03Thermory 1×4 SHP Alder Bench, Backrest, and Skirt Sauna Wood
Price range: $4.10 through $246.00Alder 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.
PROSAUNAS Aspen 2X3 S4SEE SHP Bench, Backrest & Skirting – Sauna Wood
Price range: $4.14 through $41.40Bare skin at 185 degrees, and this board stays comfortable. The 2×3 aspen bench board, surfaced four sides with eased edges, is the narrow bench option: 28mm thick, 65mm wide, smooth and resin-free. It’s the right choice for a backrest, a skirting run, or a bench deck where you want slender gaps and a clean, quiet look. We sell more aspen bench wood than any other species, season after season. Sold by the linear foot in 1 and 10 ft lengths at $4.14/lf. Milled in Estonia.
PROSAUNAS Thermo-Aspen 2X3 S4SEE SHP Bench, Backrest & Skirting – Sauna Wood
Price range: $4.22 through $42.25Narrow bench board, long track record. Thermo-aspen at 2×3 is what most Scandinavian builders reach for when they want a clean, knot-free seat that won’t gap or warp over the years. The thermal modification (heat and steam, nothing else) turns plain aspen into a golden brown that reads as traditional to American eyes, then locks the wood so it can’t hold moisture and won’t move on you. No resin, no splinters, cool under bare skin. Thermo-aspen is the wood we reach for first, and we’d put this board in our own sauna without a second thought. Sold by the linear foot, free samples available. Questions?
Dark Thermo-Alder Wall Paneling 1×4 STS4 – Intense Thermal Modification Sauna Wood by Thermory
Price range: $4.25 through $249.90Thermal modification darkens wood, and intense thermal modification darkens wood even more. It also takes the benefits of thermal modification to the next level.
1×4 Dark 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.
1X4 Black Thermo-Spruce STS4 T&G Wall Cladding – Brushed & Waxed Black Sauna Wood by Thermory
Price range: $4.27 through $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.
Thermo-Aspen 1×4 VIRE Wall Cladding – Sauna Wood by Thermory
Price range: $4.31 through $258.60Add 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″.
PROSAUNAS Thermo-Aspen 1X4 T&G STS4 Wall Cladding – Sauna Wood
Price range: $4.38 through $43.78A clean, classic sauna wall in the cladding width most builders start with. The 1×4 STS4 in thermo-aspen is a tongue-and-groove board, 0.59″ thick, milled 3.54″ wide for 3.1″ of coverage per row. The thermal modification takes it to a warm golden-brown that runs all the way through, so trimmed ends match the face and nothing reads as patchwork. Knot-free, no resin, stays cool against bare skin. Easy to run floor to ceiling and easy to pair with a contrasting bench or trim. Sold by the linear foot.
PROSAUNAS Aspen 1X4 T&G STS4 Wall Cladding – Sauna Wood
Price range: $4.41 through $44.08The Scandinavian default, and ours too. This is natural aspen tongue-and-groove wall cladding, STS4 profile, milled in Estonia at 15mm thick and 90mm wide with 80mm of coverage per board. Pale, bright, no resin, no splintering, and cool to the touch even when the room is running at full temperature. We sell more aspen than any other wood, year after year, because it works: it reads clean in any lighting, it pairs with every heater finish, and nobody is allergic to it. Sold by the linear foot in lengths from 1 to 10 ft.
Thermo-Aspen 5/4×3 STEP Wall Cladding – Sauna Wood by Thermory
Price range: $4.48 through $179.20Step 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.
1X4 Thermo-Aspen STS4 T&G Wall Cladding – Thermally Modified Sauna Wood by Thermory
Price range: $4.52 through $271.20Thermally 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.
PROSAUNAS Thermo-Spruce 2X4 S4SEE SHP Bench, Backrest & Skirting – Sauna Wood
Price range: $4.56 through $45.60Ben sided his own house in thermo-spruce. That tells you something. This is the 2×4 bench board in thermally modified Nordic spruce, 1.02″ thick by 3.54″ wide, and it’s the budget-friendly bench, backrest, and skirting board. Rich amber color, tight knots, a rustic look that’s not for everybody but that a lot of people flat-out love. The thermal modification (heat and steam, no chemicals) gives it the same moisture resistance and stability you get in thermo-aspen, at a lower entry price. Strong, rot-resistant, and good for benches, backrests, and skirting. The classic move is thermo-spruce walls with thermo-aspen benches. Sold by the linear foot.
PROSAUNAS Thermo-Aspen Grace™ 2X3 T&G Wall Cladding – Sauna Wood
Price range: $4.60 through $45.98Shadow grooves, thick boards, and a little architecture on your walls. The Grace 2×3 in thermo-aspen is a wide-reveal T&G wall cladding, 1.06″ thick with a 2.2″ coverage per board, designed to make a sauna wall look like a deliberate design choice instead of just paneling. The broad shadow groove between boards catches the light differently than a standard V-joint and gives the room depth. Thermal modification (heat and steam, no chemicals) locks in a warm golden-brown that won’t fade from humidity and won’t gap from moisture cycling. A real statement wall, without the pretension. Sold by the linear foot.
Thermo-Aspen 1×4 KYTE Wall Cladding – Motion Panels by Thermory
Price range: $4.62 through $277.20Step 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″.
PROSAUNAS Western Red Cedar 2X4 STK S4SEE Bench, Backrest & Skirting – Sauna Wood
Price range: $4.67 through $37.40Knots and all. Western Red Cedar 2×4 STK S4SEE is the thicker bench board for the builder who wants the weight and depth of a 1.5″ seat without paying clear-grade prices. STK means Select Tight Knot: the knots are natural, tight, and part of the character. At 3.5″ wide and 1.5″ thick, this is a substantial bench board with a real cedar look. The aroma is there, the reddish grain is there, and the lower price point makes a full bench build more realistic. Honest downside: the knots and the STK-grade movement mean these boards gap a bit more than clear VG over the years. Milled in Canada. Sold by the linear foot.
PROSAUNAS Alder Grace™ 2X3 T&G Wall Cladding – Sauna Wood
Price range: $4.81 through $38.47The wall profile that makes people stop and ask what species that is. Grace is a wide tongue-and-groove with a precision shadow reveal, and in natural alder the warm reddish-brown tone makes those grooves pop. Each board is 2.52" wide with 2.2" net coverage, milled in Estonia to 1.06" thick. Dramatic for a wall, clean for a ceiling, honestly different from the usual sauna paneling. Pairs with any alder bench board for a matched room. Sold by the linear foot in 1 and 8 ft lengths.
PROSAUNAS Aspen Grace™ 2X3 T&G Wall Cladding – Sauna Wood
Price range: $4.81 through $48.08You won’t find this profile from most mills. Grace is a wide-grooved designer tongue-and-groove, 27mm thick and 64mm wide, with a 56mm coverage and a shadow reveal that reads architectural rather than just “sauna wall.” It’s aspen, so the tone is pale, the surface is resin-free and smooth, and the room stays bright. We carry Grace because when a customer wants a contemporary room that looks considered, not just lined, this is what gets them there. Sold by the linear foot in lengths from 1 to 10 ft.
Thermory 1×4 SHP Thermo-Alder Bench, Backrest, and Skirt Sauna Wood
Price range: $4.96 through $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.
PROSAUNAS Hemlock 1X4 VG S4SEE Bench, Backrest & Skirting – Sauna Wood
Price range: $5.07 through $50.75Pale, clean, and quieter than you’d expect. This is Hemlock 1×4 VG S4SEE bench board: clear A+ grade, 0.69″ thick, 3.5″ wide, straight-grained, knot-free, milled in Canada. Hemlock has a light straw color and almost no scent, which makes it the right choice for anyone sensitive to cedar aroma or building a room with a modern, neutral look. We didn’t carry hemlock for years because we couldn’t find a supplier with clear grade we trusted. We carry this one now. One real note: hemlock can pick up a slight yellow tint under artificial light over time. If the room is well-lit with daylight it reads beautifully. Sold by the linear foot.
Aspen Sauna Wall Cladding — STS4 — 1×5 — Plain Aspen (Not Thermally Modified)
Price range: $5.08 through $304.80Premium plain Aspen wall cladding — STS4 profile — smooth, resin-free, and cool to the touch. Not thermally modified.
Thermory 1×4 SHP Thermo-Aspen Bench, Backrest, and Skirt Sauna Wood
Price range: $5.09 through $254.50Thermory 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.

Prebuilt
Sauna Brushes
Vents