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GardenHouse24 USA Sauna Marit 90 Garden Room at sunset, glowing warmly from within

Sauna Marit 90 – Outdoor Sauna, 691 sq ft

SKU 9003560
Save $10,600.00
$63,600.00
$53,000.00
Freedom Room product specialist

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The Sauna Marit 90 is an outdoor structure designed for use as a large-scale sauna. This model provides 691 square feet of space for outdoor living and relaxation. It functions as a standalone garden building for property owners who require a spacious, dedicated thermal environment. This unit is suitable for homeowners looking to add a permanent outdoor sauna facility to their lawn or garden area.
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12 Weeks Delivery

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Lasts A Lifetime!

3 Year Warranty

Office by Day, Chill Spot by Night—Marit 90 Does Both

GardenHouse24 USA Sauna Marit 90 Garden Room is a modern, durable outdoor structure made from high-quality Nordic spruce, designed to enhance your backyard living space. It features a spacious 18.25 m² layout with large double-glass doors, tall windows for natural light, and a covered front porch. With precision-cut tongue-and-groove construction, 70 mm thick walls, and a sleek, contemporary design, this wooden cabin offers reliable insulation, year-round comfort, and easy assembly.

What's Included?

  • DIY kit
  • Closed shell
  • Arrives in flatpack
  • Internal walls included
  • Doors & windows included
  • Roofing cover & rain gutters as an extra

Specifications

  • Indoor area: 691.04 ft²
  • Log profile: 3.54 in
  • Number of floors: 1
  • Number of rooms: 1
  • Base dimensions: 23.95 ft x 14.67 ft
  • Floor space 1 floor: 318.61 ft²
  • Floor space second floor: 175.45 ft²
  • Floor Material: 1.1 in
  • Terrace Area: 196.98 ft²
  • Roof Type: Gable roof
  • Floor included: Yes
  • Wood type: Nordic spruce, massive logs
  • Ridge height: 17.32 ft
  • Roof area: 377.81 ft²
  • Eave Height: 9.19 ft
  • Sauna Room Benches Included: Yes
  • Doors Included: Yes
  • Windows Included: Yes
  • Roof Shingles Included: No
  • Roof Slope: 34.2°
  • Roof Material: Nordic spruce

Features

  • Spacious Interior: With over 18 square meters of floor space, it offers plenty of room for lounging, working, or hosting. It’s ideal for converting into a garden office, hobby studio, or guest lounge.
  • Premium Nordic Spruce: Crafted from slow-grown Nordic spruce, it’s naturally strong and durable. The high-quality timber ensures long-lasting performance and a clean, modern look.
  • Thick 70 mm Walls: Built with extra-thick 70 mm wall planks, it provides excellent insulation. This keeps the space comfortable year-round, even in colder climates.
  • Double-Glazed Windows and Doors: Large, energy-efficient windows and doors let in natural light while reducing heat loss. They also add to the sleek and airy appearance of the garden room.
  • Modular Layout: The smart floor plan includes three clearly defined sections, allowing flexible interior design. Easily designate zones for work, rest, and storage.
  • Easy Assembly Kit: Pre-cut components and tongue-and-groove construction make DIY setup simple. It’s a great project for handy homeowners who want fast results.

Internal Room

The Internal Room includes an assembly kit designed for easy installation inside a finished garden building. It features a sliding door and ceiling, creating a fully enclosed space.

The kit also comes with two solid 1.1-inch walls, a corner support beam, and all the necessary fixings, conveniently packed flat for transport.

Closet: 3.98 ft x 5.95 ft

Bathroom: 3.98 ft x 7.92 ft

Staining/Painting Treatment

Extend the life of your outdoor freedom room and protect it from environmental damage with premium wood treatment.

Benefits include:

  • Shields wood from rot, mold, and staining fungi
  • Guards against UV rays and rain
  • Prolongs the durability of wooden surfaces
  • Enhances appearance and makes cleaning easier

Recommended high-end wood staining products:

  • Cabot Australian Timber Oil – Known for deep penetration and rich, long-lasting color; ideal for decks, siding, and outdoor structures.
  • DEFY Extreme Wood Stain – A water-based, eco-friendly stain with high UV resistance and durable protection for harsh outdoor conditions.

Downloads

Why Choose Outdoor Freedom Rooms?

We use premium Nordic/Baltic Spruce

These softwoods thrive in the cold northern regions of Europe and grow more slowly than standard spruce, pine, or fir, resulting in 6 to 8 times more growth rings. Spruce features a finer grain and fewer, smaller knots than Pine, though both types are lightweight and easy to machine.

Comes with a 5-year anti-rot warranty

It includes a 5-year anti-rot warranty that begins the moment your order ships. This covers issues such as glass or hardware seal failures, wall log splitting, or faulty components.

Unloading is included in the delivery

Receive your new log house hassle-free, our delivery service handles the unloading at no extra cost.

Fast delivery for in-stock items

Have your freedom rooms delivered right to your doorstep! In-stock models arrive in 10–12 weeks.

About Garden House 24 Timber Garden Products

Born from a passion for precision craftsmanship, Garden House 24 brings decades of timber-building expertise to your backyard. What began as a small European workshop has grown into a trusted source for high-quality garden rooms, sheds, and cabins. Built to last and designed to inspire, our timber products combine durability with timeless style.

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