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GardenHouse24 USA Sauna Maria 90 Garden Room is placed on a grassy lawn with a stone path, featuring a round window and door with circular glass

Sauna Maria 90 – Outdoor Sauna, 46 sq ft

SKU 9003460
Save $2,657.60
$15,945.60
$13,288.00
Freedom Room product specialist

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12 Weeks Delivery

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Lasts A Lifetime!

3 Year Warranty

A Garden Room That Works Overtime as a Retreat

GardenHouse24 USA Sauna Maria 90 Garden Room is a compact and modern outdoor structure made from durable Nordic spruce with a sleek flat roof and distinctive round windows. It's 4.6 m² interior offers a cozy space perfect for relaxing, working, or entertaining, while the solid tongue-and-groove walls and pressure-treated foundation ensure long-lasting durability.

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: 46.07 ft²
  • Log profile: 3.54 in
  • Number of floors: 1
  • Number of rooms: 1
  • Base dimensions: 7.52 ft x 7.52 ft
  • Floor space 1 floor: 46.07 ft²
  • Floor Material: 1.1 in
  • Roof Type: Skillion roof
  • Floor included: Yes
  • Wood type: Nordic spruce, massive logs
  • Ridge height: 8.4 ft
  • Roof area: 83.96 ft²
  • Eave Height: 7.87 ft
  • Sauna Room Benches Included: Yes
  • Doors Included: Yes
  • Windows Included: Yes
  • Roof Shingles Included: No
  • Roof Slope: 4°
  • Roof Material: Nordic spruce

Features

  • Compact Size: With a 4.6 m² footprint, it fits easily into most gardens without overwhelming the space.
  • Premium Nordic Spruce: Made from slow-grown Nordic spruce for natural strength, beauty, and durability.
  • Modern Flat Roof: The sleek flat roof adds a minimalist, contemporary touch to any outdoor setting.
  • Solid Tongue-and-Groove Construction: The interlocking design offers better insulation and stability over time.
  • Pressure-Treated Foundation Beams: Protects the base from moisture and ground contact for a longer lifespan.
  • Easy Assembly: Comes with pre-cut parts and instructions, making DIY setup quick and straightforward.
  • Eco-Friendly Materials: Responsibly sourced wood supports sustainability without sacrificing quality.

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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