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Sauna Sanna 90 at golden hour with four guests relaxing inside beside a landscaped pond and native Texas garden.

Sauna Sanna 90 – Outdoor Sauna, 150 sq ft

SKU 9005260
Save $4,758.40
$28,550.40
$23,792.00
Freedom Room product specialist

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The Sauna Sanna 90 is an outdoor sauna designed for home and garden placement with a total area of 150 square feet. This large-scale spa structure provides a dedicated space for heat therapy and relaxation within a residential outdoor setting. It functions as a standalone unit for property owners looking to install a permanent wellness facility. This model is suitable for homeowners who require a spacious outdoor sauna for personal use or entertaining guests.
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Lasts A Lifetime!

3 Year Warranty

Turn Your Yard into a Wellness Escape

GardenHouse24 USA Sauna Sanna 90 Garden Room is a sleek, modern outdoor structure built from high-quality Nordic spruce, featuring a spacious 13.9 m² interior split between a 5.72 m² sauna-ready section and an 8.21 m² relaxation or utility room. This wooden outdoor structure includes a striking round window, double-glazed full glass doors, and a wall thickness of 44 mm for added insulation and 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: 149.62 ft²
  • Log profile: 3.54 in
  • Number of floors: 1
  • Number of rooms: 1
  • Base dimensions: 9.48 ft x 18.41 ft
  • Floor space 1 floor: 149.62 ft²
  • Floor Material: 1.1 in
  • Length With Roof Overhang: 11.08 ft
  • Width With Roof Overhang: 18.75 ft
  • Roof Type: Gable roof
  • Floor included: Yes
  • Wood type: Nordic spruce, massive logs
  • Ridge height: 0.95 ft
  • Roof area: 221.74 ft²
  • Eave Height: 0.81 ft
  • Sauna Room Benches Included: Yes
  • Doors Included: Yes
  • Windows Included: Yes
  • Roof Shingles Included: No
  • Roof Slope: 17.9°
  • Roof Material: Nordic spruce

Features

  • Split Room Layout: It features two distinct spaces—one for a sauna and one for relaxation or storage—offering flexibility for your backyard lifestyle.
  • High-Quality Nordic Spruce: Built with strong, sustainably sourced Nordic spruce that’s durable and naturally resistant to the elements.
  • Double-Glazed Glass Doors: Full-length doors with double glazing provide insulation and a clear garden view, making the room feel open and bright.
  • Spacious Interior: With 13.9 m² of total space, it comfortably accommodates guests, furniture, or a sauna setup without feeling cramped.
  • 44 mm Thick Walls: Thick, solid wood walls enhance insulation, energy efficiency, and year-round usability.
  • Easy Assembly: The interlocking log system makes setup more straightforward, even for DIY enthusiasts with minimal construction experience.
  • Weather-Resistant Roof: A sturdy, gabled roof with bitumen shingles keeps the structure protected in all seasons.
  • Timeless Scandinavian Style: Its clean lines and natural wood finish blend beautifully into any backyard, adding visual appeal and function.

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.

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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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