Skip to content

Great Spring Sales Pricing with Free Shipping on Almost Heaven and Dundalk Saunas! - Sale ends this month! - Call or Chat for a Free Consultation 888-655-3625

Thermory 4 Person Barrel Sauna No 81 DIY Kit with Changing Room

Regular price $8,473.00

Unit price per 


only 0 left in stock

Get Ready to Sizzle with the Thermory 80 Series! 🔥

Due to its blazing popularity, our stock is sizzling away fast. Don't miss out - chat with us now to see what's in stock or reserve your spot for the next fiery shipment. Preorders for the next shippment will be taken to ensure your place in the Thermory 80 Series sensation!


Embrace luxury with the Thermory No81 4-person, premium-quality DIY Barrel Sauna Kit featuring a convenient changing room. Stand tall and unwind in the largest and most spacious barrel sauna available, without the need for a panoramic window. This design includes a changing room at the entrance for added convenience and privacy. Crafted with quality materials and superb engineering, this is the very best outdoor sauna experience you can enjoy.


  • Expansive 9.84 ft length accommodates a 4-person occupancy comfortably.
  • Changing room included for added privacy and convenience—no front porch needed.
  • Constructed from thermally modified Northern European spruce for unrivaled durability and stability.
  • Effortless DIY installation with pre-cut and pre-milled staves and cradles—no cutting required.
  • Thermal modification process ensures the wood never shrinks, even in fluctuating weather.
  • Exceptional rot- and moisture-resistance ensures a long-lasting sauna experience.
  • Superior insulation properties for even heat distribution throughout the sauna.
  • Includes roof shingles, flooring, and an exterior trim package.
  • Personalize with your preferred sauna heater (not included).

Technical Specifications

Product Weight 2090 lb
Product Dimensions 94.9x90.5x118 in
Outside Diameter 90.15 inch
Inside Diameter 87 in
Bench Length 64.15 in
Bench Width 22.25 in
Wall/Board Thickness 40mm
Volume 220 Cu ft
Window Size N/A
Shipping Crate Dimensions 120x48x40 inches
Crated Weight 2006 lb

In the Box

Items included: Barrel cradles, body staves, wall panels, glass front door, interior benches, backrest staves, duckboard flooring, fasteners, adhesive roof tape, metal bands, heat shield, cable raceway, rain jacket with trim, and roof shingles. Heater not included

About Thermory

Thermory Barrel Saunas are a cut above the rest, being the only thermally modified barrel saunas in North America. Experience the beauty of real wood, enhanced by our unique thermal modification process for unbeatable durability and stability without any shrinkage.

Draw inspiration from the origin of sauna culture with our Nordic softwood, known for its rot resistance and endurance against the elements. This combination of outstanding design and structural integrity ensures that your Thermory Barrel Sauna is not only a product of beauty but of lasting quality.

Thermory Benefits

Wellness Benefits

Step into your Thermory Barrel Sauna and enter a private sanctuary of warmth, steam, and tranquil comfort, unmatched by any other barrel. More than a place to shed the burdens of the day, a Thermory Barrel Sauna is your own personal space to speed your body’s natural healing process. Just relax and let your sauna do the work to help rejuvenate sore muscles, improve joint movement, and eliminate built-up toxins. So, whatever the day takes out of you, you’ll always finish strong.

Look inside barrel No 54, click and drag to look around!


Answer a few questions and let our quiz guide you to the perfect sauna for your needs.


Close (esc)


Use this popup to embed a mailing list sign up form. Alternatively use it as a simple call to action with a link to a product or a page.

Age verification

By clicking enter you are verifying that you are old enough to consume alcohol.


Your cart is currently empty.
Shop now