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A light wooden GardenHouse24 USA Sauna Li 90 Garden Room stands beside a pool with a cushioned lounge chair and folded towels nearby

Sauna Li 90 – Outdoor Sauna, 48 sq ft

SKU 9003260
Save $3,108.80
$18,652.80
$15,544.00
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The Sauna Li 90 is an outdoor sauna designed for home and garden placement within a pool or spa area. This structure provides a total interior space of 48 square feet for heat therapy and relaxation. As a dedicated outdoor unit, it functions as a standalone wellness installation for property owners looking to add a private spa facility to their exterior living space.
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Lasts A Lifetime!

3 Year Warranty

Own the Retreat Everyone Wishes They Had.

GardenHouse24 USA Sauna Li 90 Garden Room is a compact 4.37 m² outdoor structure built from durable, slow-grown Nordic spruce, designed for year-round use and maximum heat efficiency. This wooden outdoor sauna features a tempered glass door, side window for natural light, sturdy 1.57" thick walls, and a sleek, modern profile that fits easily in most backyard spaces.

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: 48.44 ft²
  • Log profile: 3.54 in
  • Number of floors: 1
  • Number of rooms: 1
  • Base dimensions: 7.52 ft x 7.38 ft
  • Floor space 1 floor: 48.44 ft²
  • Floor Material: 1.1 in
  • Length With Roof Overhang: 8.83 ft
  • Width With Roof Overhang: 9.33 ft
  • Roof Type: Flat roof
  • Floor included: Yes
  • Wood type: Nordic spruce, massive logs
  • Ridge height: 0.87 ft
  • Roof area: 81.81 ft²
  • Eave Height: 0.74 ft
  • Sauna Room Benches Included: Yes
  • Doors Included: Yes
  • Windows Included: Yes
  • Roof Shingles Included: No
  • Roof Slope: 4.2°
  • Roof Material: Nordic spruce

Features

  • Compact Size: With a 4.37 m² footprint, it's ideal for small gardens or patios without sacrificing comfort.
  • High-Quality Timber: Built from slow-grown Nordic spruce, it offers superior durability, insulation, and a clean natural look.
  • Thick Wall Construction: The 1.57-inch (40 mm) wall thickness provides excellent thermal efficiency and structural strength.
  • Tempered Glass Door: The tall, full-glass door adds a modern touch while letting in light and maintaining heat safely.
  • Side Window: A large side window brings in natural light, enhancing the relaxing atmosphere inside.
  • Weather-Resistant Build: Designed to withstand harsh outdoor conditions, it holds up in all seasons without extra maintenance.
  • Easy Assembly: Pre-cut materials and a user-friendly layout make it simple to build with basic tools.
  • European Craftsmanship: Manufactured in Europe, it offers precision construction, attention to detail, and premium 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.

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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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