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Dark Thermo-Alder 5/4×4 SHP Bench, Backrest, and Skirt Sauna Wood – Intense Modification by Thermory
Price range: $5.88 through $235.00Dark 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.
Rento Kenno Sauna Hat from Finland
$21.00We’ve found it, the most comfortable sauna hat on the planet. This sauna hat protects the hair and scalp from the heat of the sauna. In winter, the sauna hat also keeps your head warm in the hot tub. This hat is suitable for both women and men.
Thermo-Spruce Sauna Bench and Floor Wood – 5/4 SHP Sauna Wood By Thermory
Price range: $5.55 through $222.00One 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.
Thermory 5/4×4 SHP Thermo-Alder Bench, Backrest, and Skirt Sauna Wood
Price range: $6.09 through $243.00Thermo-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
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.
Alder Wall To Wall Flat T Transition Trim
$34.80Need longer wall cladding boards in alder than those 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.
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.
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 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.
1X5 Brushed Black Alder STS4 Wall Cladding – Sauna Wood by Thermory
Price range: $6.52 through $391.20Looking for a smooth, black sauna wood with a professional finish? The wire-brushed black wax alder by Thermory is a perfect choice for a durable finish. Whether contrasting with woods like thermo-aspen or going all dark for the ancient ‘smoke sauna’ look this STS4 1×5 is an ideal choice for a wide plank wall and ceiling cladding. Actual wall coverage is 4.4″.
Note: Brushed black alder does NOT have the burnt Shou Sugi Ban (yakisugi) look as other websites incorrectly show. Please ask us about ‘Thermory Ignite’ for that.
1X5 Alder STS4 Wall Cladding – Natural Sauna Wood by Thermory
Price range: $5.41 through $324.60Wide plank alder is a solid choice for any traditional Finnish sauna. Natural alder is naturally resistant to water and a favorite among sauna builders who prefer a timeless, classic look with mild aroma.
Actual wall coverage is 4.3″.
Hukka Sauna Fountain and Defuser Collection
Price range: $21.00 through $395.00Hukka Finland’s incredible line of 9 diffusers and water steam generators are made of soapstone and sit directly with the other stones in your sauna heater to create the desired steam, aroma, and ambiance. Buy them individually, or try them all and save.
Thermory Accessory Kit
$249.00Like everything they do, the Thermory Sauna Accessory Kit is modern, stylish, precise, and built to last. Comes with a Bucket, Ladle, Thermometer-Hygrometer, and Sand Timer.
HUUM OVO Sauna Light | Black or Natural Wood
$436.00HUUM OVO is an indirect LED sauna light with a sculpted wood cover that throws a soft glow onto the wall. Choose Black or Natural. The current HUUM v2 U.S. manual is a newer 2026 layout than the same-labeled 2024 BB/SSB file.
Black Aspen Indoor Sauna Windows by Thermory
Price range: $295.00 through $495.00Indoor windows from Thermory are stylish, versatile, modern. Ideal for any commercial sauna or modern home. These tall transom windows bring a touch of contemporary class to your
interior spaces with Thermory quality. Practical and easy on the eye in equal measure, the windows are available in two size options with black aspen frames and single-glazed tempered gray glass that offers shade and privacy. They are also suitable for use in damp environments, making them perfect for adding visual appeal to a home sauna or spa.
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″.
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.
Prebuilt Bench Skirt by Thermory
$275.00It’s easier than ever to complete your sauna with a prebuilt sauna bench skirt in thermally modified Aspen or Alder.
Wood Sauna Cleaner | Ready To Use Spray + Concentrate
$45.00A cleaner specially formulated for wood saunas. Trusted by public saunas, hotels, and home sauna owners to clean and sanitize your sauna. Comes with a convenient 22-ounce spray cleaner that’s ready to use and a gallon of concentrate cleaner.
This powerful sauna cleaner and disinfectant kills germs, mold, mildew and odor-causing fungi on contact.
Thermory Prebuilt Sauna Backrest
$330.00Ready-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.
Homecraft Apex Commercial-Grade Electric Sauna Heater | 10, 12, 15 and 18 kW
Price range: $2,050.00 through $3,100.00A commercial room that goes cold on a Saturday morning costs more than the heater ever did. Apex is the Homecraft built for rooms that open early and run late: an 18-inch stainless tower carrying 350 lbs of igneous rock, elements set back inside a protected air chamber instead of sitting out in the rock, and four outputs covering rooms from 400 to 1,150 cubic feet. Built in Surrey, British Columbia, CSA and UL certified. We sell the contactor box, the touchpad and the rock alongside it, so nothing lands on your dock half finished.
Harvia Virta Pro 20 | 208v 3-Phase Commercial Sauna Heater
$4,943.00If you run a public sauna and “down for maintenance” is not an option, this is the heater we trust. The Virta Pro 20 has the right mix of power, stone mass, and serviceability for busy gyms, hotels, apartments, and studios. It’s the model we see running day in, day out with minimal fuss.
Harvia’s most powerful and appealing electric sauna heater, the Virta Pro 20 is our go-to commercial sauna heater when 208v 3ph power is required. It’s as close to one-size-fits all as we’ve seen in the industry. Ideal for saunas from 354 cubic feet all the way up to 1130 cubic feet.
We have customers running this heater 24 hours/day for years in gyms, spas, hotels, and pro training centers. Maintenance, performance, and longevity are the design principles to be appreciated even more over time. When downtime isn’t acceptable, there’s nothing better than a Virta.
Sauna LED Light Strip – Compatible with HUUM, Harvia, IKI, and Saunum Heaters
Price range: $351.00 through $468.00The first flexible Sauna LED Light Strip package that’s made to handle the temperatures and environment of a sauna. ProSaunas Universal Sauna Light Package takes away the guesswork, comes with everything you need to instal perfect ambiance light for under the bench or behind the backrest in any sauna. It can be powered by any HUUM, Harvia, or Saunum heater that has external controls. Additionally, it can be powered by a standard 110v outlet on a switch (not provided).
Comes in two convenient packages: One 16′ Light Strip or Two 10′ Light Strips
SaunaLife S4B Wood-Fired Hot Tub | SOAK Series
$5,990.00Experience the most durable, high-performing wood-fired hot tub on the market. With a thick fiberglass interior and thermally modified spruce exterior that lasts up to twice as long as cedar, the SaunaLife S4 Soak Series is equipped with Nordic wood-burning technology that heats the spacious tub quickly, safely and effiently. The fiberglass interior means it won’t leak like barrel tubs, and requires little maintenance. This comfortable tub seats six and is perfect for AirBnbs and Off-Grid getaways.
Cozy Heat Quattro Wood-Burning Sauna Stove – 12 & 18 kW
Price range: $2,214.00 through $2,529.00Square geometry around an honest wood fire. Quattro’s horizontal bars and crisp footprint fit clean-lined rooms without losing the character of a real stove. The cage wraps structural-steel firebox walls about 67% thicker than a typical standard-stove wall, joined with clean welds.
Its three-path burn uses about 25% less wood than comparable heaters and still tends like a familiar wood stove. Choose 12 or 18 kW for in-sauna loading. Stones, chimney, and required protection are separate.
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.
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.
Auroom Familia – Indoor Sauna Kit With Floor
Price range: $11,990.00 through $16,490.00The perfect home or gym sauna, for those who want maximum seating and no front glass wall. The Auroom Familia comes in 5 different sizes, with three wood species to dial in your mood. Familia is a premium indoor sauna kit that’s fully insulated, crafted to perfection, with integrated lighting.
Rento Kenno Waffle Weave Bath Robe
Price range: $65.00 through $73.00Wrap Yourself in Sustainable Finnish Comfort
The simple luxury of the Rento Kenno Bath Robe will become one of your daily pleasures. Crafted from soft recycled cotton in a spa-worthy waffle weave – this kimono-style robe brings the restorative essence of the Finnish sauna to your daily rituals. Sustainability meets comfort in a timeless unisex design.
SaunaLife S2 Two Person Cold Plunge (XL)
Price range: $3,790.00 through $7,320.00Plunge into the tranquility of the SaunaLife Model S2N (Natural) or S2B (Black) hot and cold immersion tub. A must-have for home workout recovery or as a cold-plunge after a hot sauna session.
SaunaLife S1 Cold Plunge
Price range: $2,490.00 through $5,540.00Plunge into the tranquility of the SaunaLife Model S1N (Natural Wood) and S1B (Black Wood) hot and cold immersion tub. A must-have for home workout recovery or as a cold-plunge after a hot sauna session.
Harvia Fenix Upgraded Sauna Controller
Price range: $595.80 through $1,551.00Harvia Fenix Control series offers Wi‑Fi enabled 4.3″ touchscreen controls for Harvia sauna heaters and Virta Combi units. Models FX30‑U1‑U3‑XC (7 kW at 240 V/10.5 kW at 208 V), FX45‑U1‑U3‑XC (11 kW at 240 V/15 kW at 208 V), FX30C‑U1‑XC (10.8 kW combi) and FX30C‑U3‑XC (12.7 kW combi) provide remote control via the MyHarvia app; combi versions also manage the integrated steamer.4 variations
Wood Sauna Bucket with Rope Handle From ProSaunas
Price range: $74.00 through $94.00A classic Finnish sauna bucket (actually from Finland) with a convenient rope handle. Prosaunas deluxe 1-gallon sauna bucket with plastic liner combines quality craftsmanship with a solid Nordic feel. Solidly constructed from premium-quality wood of your choice, it will add a traditional look to your home sauna. Choose a wood that blends or contrasts with your sauna. The plastic-lined interior makes it easy to clean and maintian.
Ladle available as add-on.
Nordic Wood Sauna Bucket in Spruce, Alder, and Thermo-Aspen | By ProSaunas
Price range: $69.00 through $89.00Prosaunas deluxe 1-gallon sauna bucket with plastic liner combines quality craftsmanship with a solid Nordic feel. Solidly constructed from premium-quality wood of your choice, it will add a traditional look to your home sauna. Choose a wood that blends or contrasts with your sauna. The plastic-lined interior makes it easy to clean and maintian. A must have for any sauna.
Ladle available as add-on.
Manty Sauna Seat Cover from Finland – From Jokipiin Pellava
Price range: $105.00 through $145.00We spend a lot of time getting the big stuff right. The sauna, the heater, the wood species. Sometimes it’s the accessories that define the experience. Sauna seat covers is one of those things, and a great way to bring a touch of Finland into your home sauna. The Mänty sauna seat cover belongs to the Vappu in the Sauna product line that radiates calmness and closeness to nature.
Linen is an ideal material for bath and sauna textiles. The material’s absorption capacity dries the skin quickly. The fabric has been manufactured without any chemical treatments and is therefore perfectly suitable even for the most sensitive skin. Linen is a long-lasting material and its natural qualities only get better with use.
Homecraft Revive Slim Electric Sauna Heater | 8-Inch Deep, 4, 5 and 6 kW
Price range: $1,350.00 through $1,690.00Most small saunas do not fail on power. They fail on the eight inches of wall you do not have. The Revive Slim is 8 inches deep and 13.5 inches wide, and with the Homecraft wall baffle behind it the clearance to combustibles drops from 3.5 inches to 1. That is the difference between a bench you can actually sit on and a room you gave up on. Three outputs from 4 to 6 kW for rooms of 100 to 325 cubic feet, stainless throughout, built in Surrey, British Columbia, CSA and UL certified.
Thermory Modern Black Sauna Door | Premium Aspen
$1,195.00It’s here! A premium, modern black sauna door from Thermory. With gray glass, sleek black hardware, and painted alder frame. This door contrasts beautifully with any sauna aesthetic. Arrives pre-hung in a reversible frame, making the installation a breeze.
ProSaunas All-Glass Sauna Door
Price range: $893.00 through $1,175.00Get the European all-glass sauna door that’s engineered for beauty, performance, and ease of installation. ProSaunas glass sauna doors come prehung and ready to install with reversible hinges.
Homecraft Revive Electric Sauna Heater | 200 lb Rock Tower, 6, 7.5 and 9 kW
Price range: $1,690.00 through $1,775.00Water hits the stones and the room answers. That is the whole argument for the Revive: a 36-inch stainless tower holding 200 lbs of rock, with the heating elements set back inside an air chamber so the steam comes off hot stone instead of hot metal. Softer heat, and a lot more of it per ladle than a heater with a shallow basket. Three outputs from 6 to 9 kW, built in Surrey, British Columbia, CSA and UL certified with ETL listing for permanent installation. It is the heater we point wellness buyers to when they have been comparing it against a HUUM.
HaLu Sauna Round Headrest Pillow in Clear Aspen
$72.95Widely known as the most comfortable sauna pillow in Finland, the Halu Headrest is now available in North America in beautiful clear Aspen.
With four flexible dishes the HaLu pillow does not only look totally different as the traditional head rests but it also feels really different.
You hardly notice that there is something situated beneath the head, but the head is lifted in such a way that it provides a comfortable position. You are not slipping off and the pressure from the head rather than from the shoulder prevents the pillow from moving. This way the neck muscles can completely relax.
The wooden Halu pillow is the ultimate headrest for usage in the sauna. More and more people know about the existence of the pillow and enjoy the comfort and ergonomics
HaLu Backrest for Sauna – Aspen
$150.00Say goodbye to pressure points and treat yourself to the most comfortable sauna backrest on the planet.
Standard flat sauna backrests can be uncomfortable for extended periods, and some saunas have no backrest at all. The Finnish HaLu Sauna Backrest is the perfect solution, now readily available in North America on Sauna Marketplace!
The ergonomic design fits the shape of all backs, providing support to the back and head and reducing discomfort from pressure points in the back. The Halu Sauna Backrest is portable and can be positioned anywhere inside the sauna, depending on individual preference. The aspen wood is beautiful and durable and will complement every sauna.
Thermo-Aspen Sauna Floor Grid
$249.00Say goodbye to cold feet! This is easiest way to add some comfort and warmth to your sauna floor. This rolling floor grid makes maintenance, cleaning, and drying out of your sauna easier than ever. Thermory’s thermal modification process ensures a long-lasting, beautiful wood finish with minimal maintenance.
Dimensions:.55″ x 31.5″ x 35.4″ (14x800x900)
Sauna Stool or Step in Thermo-Aspen
$419.00This versatile stool can act as a moveable sauna bench, first step, or changing room seat. Dimensions are 15.7″ x 27.6′ (140x400x700).
Custom DIY Sauna Package
You bring the framed, insulated room. We work out the cladding, bench material, radiant barrier, vents, and small pieces that turn it into a sauna. Configure the room below and choose Invoice Me at checkout so we can review the dimensions, available material, and timeline with you before the package is finalized. A bucket, ladle, headrest, thermometer, hygrometer, samples, and project support are part of the process.
Thermory Adjustable Air Vent Hatch in Thermally Modified Aspen
Price range: $69.00 through $84.00Adjustable Sauna Ventilation Hatch,.5″ x 5.2″ x 11″. In Alder, Aspen, or Thermo-Aspen
Thermory Air Vent in Thermally Modified Aspen Wood
Price range: $55.00 through $84.00Sauna Ventilation Grille,.5″ x 5.9″ x 7.5″
ProSaunas Oiled Birch Sauna Ladle | 14.5 in, Made in Estonia
$27.20A ladle is the one tool in a sauna that everybody touches. This one is oiled birch, 14.5 inches from end to end, with a long handle that keeps your knuckles out of the rising steam and a wide, shallow bowl that lays water across the stones instead of punching a hole in the middle of them. Made in Estonia by the same people who mill our thermally modified cladding. Oiling is what separates the two versions we carry. The oil closes the grain a little further, so the ladle sheds water faster and keeps its colour longer against the constant wet and dry cycle of a sauna. It is the sort of thing you buy once and stop thinking about.
ProSaunas Birch Sauna Ladle | 14.5 in, Made in Estonia
$25.50A ladle is the one tool in a sauna that everybody touches. This one is birch, 14.5 inches from end to end, with a long handle that keeps your knuckles out of the rising steam and a wide, shallow bowl that lays water across the stones instead of punching a hole in the middle of them. Made in Estonia by the same people who mill our thermally modified cladding. This is the plain birch version, left natural. It will grey slightly with years of use, the way untreated birch does, which some people prefer and some do not. It is the sort of thing you buy once and stop thinking about.
Prebuilt
Sauna Brushes
Vents