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Two cozy hanging chairs with cushions sit under a lit porch attached to the wooden GardenHouse24 USA Lerum 70 Garden Room

Lerum 70 – Freedom Office, 250 sq ft

SKU 7004021
Save $3,866.40
$23,198.40
$19,332.00
Freedom Room product specialist

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The Lerum 70 Freedom Office is a garden office built from Nordic spruce with 70mm solid log walls. It features double-glazed windows and a covered terrace. With 250 sq ft of interior space, it works well as a home office, studio or home gym.

Key specs

  • Interior area: 250 sq ft, plus 72 sq ft terrace
  • Footprint: 12.08 ft x 16.01 ft
  • Ridge height: 10.63 ft; eave height: 7.31 ft
  • Wall thickness: 70mm (2.76 in) Nordic spruce logs
  • Gable roof (28.8° slope), floor included

What's included

  • DIY kit, arrives flat-packed
  • Closed shell with internal walls
  • Doors and windows included
  • Roofing cover and rain gutters available as extras
Shipping

12 Weeks Delivery

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Lasts A Lifetime!

3 Year Warranty

Chill, Dine, Work—All in One Garden Room

GardenHouse24 USA Lerum 70 Garden Room is a stylish, multi-functional outdoor structure made from durable Nordic spruce with 70 mm thick walls for year-round comfort. It features a spacious 14.18 m² main room, a 2.43 m² bathroom area, double-glazed windows, and doors for natural light and insulation, plus a 6.72 m² covered terrace perfect for relaxing or entertaining.

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: 250.8 ft²
  • Log profile: 2.76 in
  • Number of floors: 1
  • Number of rooms: 1
  • Base dimensions: 12.08 ft x 16.01 ft
  • Floor space 1 floor: 178.68 ft²
  • Floor Material: 1.1 in
  • Terrace Area: 72.12 ft²
  • Roof Type: Gable roof
  • Floor included: Yes
  • Wood type: Nordic spruce, massive logs
  • Ridge height: 10.63 ft
  • Roof area: 354.13 ft²
  • Eave Height: 7.31 ft
  • Doors Included: Yes
  • Windows Included: Yes
  • Roof Shingles Included: No
  • Roof Slope: 28.8°
  • Roof Material: Nordic spruce

Features

  • Durable Construction: Built with 70 mm thick Nordic spruce walls, it provides superior insulation and long-lasting strength in all seasons.
  • Multi-Room Layout: It includes a spacious main room, a bathroom area, and a covered terrace—giving you flexible space to relax, host, or work.
  • Covered Terrace: The 6.72 m² front terrace offers a shaded outdoor area perfect for seating, swings, or casual dining.
  • Double-Glazed Windows & Doors: These allow plenty of natural light while improving insulation and energy efficiency.
  • Compact Footprint: Despite its functionality, it fits well into most backyards without overwhelming the outdoor space.

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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