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What wood are sauna kits made of: cedar, hemlock or spruce?

Thermally modified or heat-treated wood is named most often. Counting each wood the makers of 30 kits here name: thermally modified or heat-treated wood (15), hemlock (8), spruce (7), cedar (6), pine (2), linden (2), aspen (1). A kit can name more than one, for example one wood for the walls and another for the benches.

Filter by maker, then read the product pages, where the stated wood is cited to the maker's own spec sheet. Decide what you care about before you compare, whether that is the look, the smell or the price on the maker's site, because the list will not rank the species for you. The linked wood guide covers each species.

Picks by the numbers

Each pick is the product that comes first on one figure its maker publishes, with the next ones on that figure after it. Choosing which figures to rank by is our editorial choice; the order on each is the makers' own numbers. None is a judgement of quality, we have not tested these products, and whether we earn a commission on a product never decides a pick.

Where to buy the picks

Almost Heaven Saunas Audra 2-4 Person Canopy Barrel Sauna

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Every match (30)

Filter the matches by price on the maker's site, wood, warranty, safety listing and where to buy.

Quality signals the maker publishes
Showing 30 of 30
  • Almost Heaven Saunas Salem 2 Person Barrel Sauna

    Barrel sauna · Almost Heaven Saunas

    Almost Heaven Saunas · seats 2 · barrel sauna

    • From $4,485 regular price; on sale from $4,036.50 (almostheaven.com, 23 Sep 2026)
    • Rustic Red Cedar / Onyx; Ball-and-socket lumber: 1 ⅜″ thick
    • Almost Heaven Saunas come with a Limited Lifetime Warranty covering manufacturing defects, while Harvia heaters include a 1-year warranty on heating elements and 5 years on other components
  • Almost Heaven Saunas Audra 2-4 Person Canopy Barrel Sauna

    Barrel sauna · Almost Heaven Saunas

    Almost Heaven Saunas · seats 4 · barrel sauna

    • From $7,575 (almostheaven.com, 23 Sep 2026)
    • Rustic Red Cedar / Onyx; Ball-and-socket lumber: 1 ⅜″ thick
    • Almost Heaven Saunas come with a Limited Lifetime Warranty covering manufacturing defects, while Harvia heaters include a 1-year warranty on heating elements and 5 years on other components
  • Almost Heaven Saunas Pinnacle 4 Person Barrel Sauna

    Barrel sauna · Almost Heaven Saunas

    Almost Heaven Saunas · seats 4 · barrel sauna

    • From $7,575 regular price; on sale from $6,060 (almostheaven.com, 23 Sep 2026)
    • Rustic Red Cedar / Onyx; Ball-and-socket lumber: 1 ⅜″ thick
    • Almost Heaven Saunas come with a Limited Lifetime Warranty covering manufacturing defects, while Harvia heaters include a 1-year warranty on heating elements and 5 years on other components
  • SaunaLife Ergo Series Model E7

    Barrel sauna · SaunaLife

    SaunaLife · seats 4 · barrel sauna · for outdoor use

    • No price on the maker's site
    • Full-length Thermo-Spruce staves (1.65” thick) Benches of Thermo-Aspen (1.1” bench tops, no knots)
    • Limited lifetime warranty (SaunaLife sauna environments)
  • Almost Heaven Saunas Evander Half-Moon Canopy Barrel Sauna

    Barrel sauna · Almost Heaven Saunas

    Almost Heaven Saunas · seats 6 · barrel sauna

    • From $17,653 regular price; on sale from $12,357.10 (almostheaven.com, 23 Sep 2026)
    • Built from thermally modified Nordic Pine with a smooth, knot-free finish and a bright Linden interior
    • Limited Lifetime Warranty covering manufacturing defects (sauna); Harvia heaters 1 year on heating elements, 5 years on other components
  • Almost Heaven Saunas Magnus 6 Person Canopy Barrel Sauna

    Barrel sauna · Almost Heaven Saunas

    Almost Heaven Saunas · seats 6 · barrel sauna

    • From $16,558 regular price; on sale from $11,590.60 (almostheaven.com, 23 Sep 2026)
    • Crafted from thermally modified Nordic Pine with smooth Linden benches
    • Almost Heaven Saunas come with a Limited Lifetime Warranty covering manufacturing defects, while Harvia heaters include a 1-year warranty on heating elements and 5 years on other components
  • Almost Heaven Saunas Princeton 6 Person Barrel Sauna

    Barrel sauna · Almost Heaven Saunas

    Almost Heaven Saunas · seats 6 · barrel sauna

    • From $8,932 (almostheaven.com, 23 Sep 2026)
    • Rustic Red Cedar / Onyx; Ball-and-socket lumber: 1 ⅜″ thick
    • Almost Heaven Saunas come with a Limited Lifetime Warranty covering manufacturing defects, while Harvia heaters include a 1-year warranty on heating elements and 5 years on other components
  • Redwood Outdoors Barrel Outdoor Sauna, 6 Person

    Barrel sauna · Redwood Outdoors

    Redwood Outdoors · seats 4–6 · barrel sauna · for outdoor use

    • $6,299 (redwoodoutdoors.com, 23 Sep 2026)
    • Heat-treated Hemlock
    • 1-year limited warranty on wooden saunas (materials and workmanship), from delivery date
  • Redwood Outdoors Barrel Outdoor Sauna with Porch, 6 Person

    Barrel sauna · Redwood Outdoors

    Redwood Outdoors · seats 4–6 · barrel sauna · for outdoor use

    • $6,999 (redwoodoutdoors.com, 23 Sep 2026)
    • Canadian Thermowood
    • 1-year limited warranty on wooden saunas (materials and workmanship), from delivery date
  • Redwood Outdoors Extra-Wide Outdoor Barrel Sauna, 6 Person

    Barrel sauna · Redwood Outdoors

    Redwood Outdoors · seats 4–6 · barrel sauna · for outdoor use

    • $8,299 (redwoodoutdoors.com, 23 Sep 2026)
    • Canadian Thermowood
    • 1-year limited warranty on wooden saunas (materials and workmanship), from delivery date
  • Redwood Outdoors Horizon Outdoor Sauna, 6 Person with Porch

    Barrel sauna · Redwood Outdoors

    Redwood Outdoors · seats 4–6 · barrel sauna · for outdoor use

    • $7,599 (redwoodoutdoors.com, 23 Sep 2026)
    • Canadian Thermowood
    • 1-year limited warranty on wooden saunas (materials and workmanship), from delivery date
  • Redwood Outdoors Vista Outdoor Sauna, 6 Person

    Barrel sauna · Redwood Outdoors

    Redwood Outdoors · seats 4–6 · barrel sauna · for outdoor use

    • $6,899 (redwoodoutdoors.com, 23 Sep 2026)
    • Canadian Thermowood
    • 1-year limited warranty on wooden saunas (materials and workmanship), from delivery date
  • SaunaLife Ergo Series Model E8

    Barrel sauna · SaunaLife

    SaunaLife · seats 6 · barrel sauna · for outdoor use

    • No price on the maker's site
    • Full-length Thermo-Spruce staves (1.65” thick)
    • Limited lifetime warranty (SaunaLife sauna environments)
  • Redwood Outdoors Barrel Outdoor Sauna, 8 Person

    Barrel sauna · Redwood Outdoors

    Redwood Outdoors · seats 6–8 · barrel sauna · for outdoor use

    • $6,899 (redwoodoutdoors.com, 23 Sep 2026)
    • Canadian Thermowood
    • 1-year limited warranty on wooden saunas (materials and workmanship), from delivery date
  • Redwood Outdoors Cabin Outdoor Sauna, 4 Person

    Cabin sauna · Redwood Outdoors

    Redwood Outdoors · seats 4 · cabin sauna · for outdoor use

    • $7,299 (redwoodoutdoors.com, 23 Sep 2026)
    • Canadian Thermowood
    • 1-year limited warranty on wooden saunas (materials and workmanship), from delivery date
  • Almost Heaven Saunas Allegheny 6 Person Cabin Sauna

    Cabin sauna · Almost Heaven Saunas

    Almost Heaven Saunas · seats 6 · cabin sauna

    • From $10,722 (almostheaven.com, 23 Sep 2026)
    • Built from Nordic spruce, cabin saunas combine natural beauty with excellent thermal performance
    • Almost Heaven Saunas come with a Limited Lifetime Warranty covering manufacturing defects, while Harvia heaters include a 1-year warranty on heating elements and 5 years on other components
  • Almost Heaven Saunas Appalachia 6 Person Cabin Sauna

    Cabin sauna · Almost Heaven Saunas

    Almost Heaven Saunas · seats 6 · cabin sauna

    • From $12,650 (almostheaven.com, 23 Sep 2026)
    • Built from Nordic spruce, cabin saunas combine natural beauty with excellent thermal performance
    • Almost Heaven Saunas come with a Limited Lifetime Warranty covering manufacturing defects, while Harvia heaters include a 1-year warranty on heating elements and 5 years on other components
  • Almost Heaven Saunas Solide Compact 4-6 Person Cabin Sauna

    Cabin sauna · Almost Heaven Saunas

    Almost Heaven Saunas · seats 6 · cabin sauna

    • From $14,233 (almostheaven.com, 23 Sep 2026)
    • Thick Nordic spruce timber wall sections
    • Almost Heaven Saunas come with a Limited Lifetime Warranty covering manufacturing defects, while Harvia heaters include a 1-year warranty on heating elements and 5 years on other components
  • Almost Heaven Saunas Blackwater 1-2 Person Mini-Cube Sauna

    Cube sauna · Almost Heaven Saunas

    Almost Heaven Saunas · seats 1–2 · cube sauna

    • From $8,397 (almostheaven.com, 23 Sep 2026)
    • Choose Rustic Cedar for that classic sauna aroma and natural warmth, or go with a customizable Onyx Stain
    • Almost Heaven Saunas come with a Limited Lifetime Warranty covering manufacturing defects, while Harvia heaters include a 1-year warranty on heating elements and 5 years on other components
  • Redwood Outdoors Duo Outdoor Sauna, 2 Person

    Cube sauna · Redwood Outdoors

    Redwood Outdoors · seats 2 · cube sauna · for outdoor use

    • $5,899 (redwoodoutdoors.com, 23 Sep 2026)
    • Canadian Thermowood
    • 1-year limited warranty on wooden saunas (materials and workmanship), from delivery date
  • SaunaLife Cube Luxury Series Model CL4G

    Cube sauna · SaunaLife

    SaunaLife · seats 3 · cube sauna · for outdoor use

    • No price on the maker's site
    • Walls of Thermo-Spruce (42mm) Front and back wall of Thermo-Spruce (28mm)
    • Limited lifetime warranty (SaunaLife sauna environments)
  • Finnleo Hallmark 57

    Indoor sauna · Finnleo

    Finnleo · indoor sauna · for indoor use

    • No price on the maker's site
    • Clear Canadian Hemlock interior and exterior
    • 5-year limited warranty on wood cabinetry (parts, incl. freight for 5 years)
  • Finnleo Hallmark 44

    Indoor sauna · Finnleo

    Finnleo · seats 2 · indoor sauna · for indoor use

    • No price on the maker's site
    • Clear Canadian Hemlock interior and exterior
    • 5-year limited warranty on wood cabinetry (parts, incl. freight for 5 years)
  • Redwood Outdoors Alcove Indoor Sauna, 2 Person

    Indoor sauna · Redwood Outdoors

    Redwood Outdoors · seats 2 · indoor sauna · for indoor use

    • $4,299 (redwoodoutdoors.com, 23 Sep 2026)
    • Heat-treated hemlock
    • 1-year limited warranty on wooden saunas (materials and workmanship), from delivery date
  • SaunaLife Xperience Series Model X2

    Indoor sauna · SaunaLife

    SaunaLife · seats 2 · indoor sauna · for indoor use

    • No price on the maker's site
    • Bright and welcoming Nordic Spruce walls and ceiling
    • Limited lifetime warranty
  • Finnleo Hallmark 46

    Indoor sauna · Finnleo

    Finnleo · seats 3 · indoor sauna · for indoor use

    • No price on the maker's site
    • Top quality clear Canadian Hemlock inside and out
    • 5-year limited warranty on wood cabinetry (parts, incl. freight for 5 years)
  • Finnleo Vita II (Designer Series)

    Indoor sauna · Finnleo

    Finnleo · seats 2–3 · indoor sauna · for indoor use

    • No price on the maker's site
    • Hemlock interior and exterior
    • 5-year limited warranty on wood cabinetry (parts, incl. freight for 5 years)
  • Redwood Outdoors Haven Indoor Sauna, 3 Person

    Indoor sauna · Redwood Outdoors

    Redwood Outdoors · seats 3 · indoor sauna · for indoor use

    • $5,499 (redwoodoutdoors.com, 23 Sep 2026)
    • Heat-treated hemlock
    • 1-year limited warranty on wooden saunas (materials and workmanship), from delivery date
  • Finnleo Centurion (Designer Series)

    Indoor sauna · Finnleo

    Finnleo · seats 4–5 · indoor sauna · for indoor use

    • No price on the maker's site
    • Light colored clear vertical grain Canadian Hemlock benches and backrests
    • 5-year limited warranty on wood cabinetry (parts, incl. freight for 5 years)
  • Scandia DIY PreCut Sauna Kit

    Indoor sauna · Scandia

    Scandia · seats 4–8 · indoor sauna · for indoor use

    • $10,080 (scandiamfg.com, 23 Sep 2026)
    • 7/16" x 6" Spanish Cedar Tongue and Groove panels for all Walls and Ceiling (Vertical Installation)

Prices are the price each maker's own site showed in US dollars on the date shown; the seller's page has the current price. Warranties and safety listings are the makers' own statements, cited on each product page. A price starting 'From' is the cheapest configuration a maker offers, which may leave out the heater or options. Every product here is sold by its maker on the maker's own site. Where a product page carries a paid link (to Amazon or another approved retailer), Saunakivi may earn a commission; no sort order or filter favours those products. We have not tested these products.