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GardenHouse24 USA ALU Concept 70B Garden Room features a warm wood exterior and opens to a tidy patio with a table, chairs, and flower garden

ALU Concept 70B – Freedom Office, 233 sq ft

SKU 7023930
Save $4,411.00
$26,466.00
$22,055.00
Freedom Room product specialist

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The ALU Concept 70B Freedom Office is a garden office built from Nordic spruce with 70mm solid log walls. It features double-glazed windows and aluminum framing. With 233 sq ft of interior space, it works well as a home office, studio or home gym.

Key specs

  • Interior area: 233 sq ft
  • Footprint: 13.06 ft x 18.93 ft
  • Ridge height: 8.19 ft; eave height: 7.75 ft
  • Wall thickness: 70mm (2.76 in) Nordic spruce logs
  • Flat roof (1.9° 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

Question?

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512-777-0154

50% DEPOSIT

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Lasts A Lifetime!

3 Year Warranty

Built Tough. Looks Soft. Feels Just Right.

GardenHouse24 USA ALU Concept 70B Garden Room is a modern, all-season structure designed with a durable aluminum frame and insulated wall panels for year-round comfort. This wooden outdoor structure features large floor-to-ceiling double-glazed windows, allowing plenty of natural light while maintaining energy efficiency.

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: 233.58 ft²
  • Log profile: 2.76 in
  • Number of floors: 1
  • Number of rooms: 3
  • Base dimensions: 13.06 ft x 18.93 ft
  • Floor space 1 floor: 233.58 ft²
  • Floor Material: 1.1 in
  • Roof Type: Flat roof
  • Floor included: Yes
  • Wood type: Nordic spruce, massive logs
  • Ridge height: 8.19 ft
  • Roof area: 317.54 ft²
  • Eave Height: 7.75 ft
  • Doors Included: Yes
  • Windows Included: Yes
  • Roof Shingles Included: No
  • Roof Slope: 1.9°
  • Roof Material: Nordic spruce

Features

  • Insulated Wall Panels: The structure includes high-quality insulated panels for energy efficiency. Stay warm in winter and cool in summer without extra effort.
  • Double-Glazed Windows: Floor-to-ceiling double-glazed glass panels provide ample natural light while reducing noise and heat loss. Enjoy a bright space with year-round comfort.
  • Durable Aluminum Frame: Built with strong aluminum, the frame is resistant to rust, corrosion, and wear. It’s made to last for decades with minimal upkeep.
  • All-Season Use: Designed for all climates, this garden room offers comfort through every season. Whether it's rain, snow, or sun, you're covered.
  • Low Maintenance: The materials used are easy to clean and maintain. Spend more time enjoying your space and less time caring for it.
  • Quick Installation: Pre-fabricated elements allow for faster assembly compared to traditional builds. Get your outdoor space up and running in less time.
  • Secure & Safe: Features like sturdy locking doors and impact-resistant glass ensure safety and peace of mind. It’s secure enough for valuable equipment or a personal retreat.
  • Eco-Friendly Build: The materials and insulation support energy-efficient living. It’s a smart choice for eco-conscious homeowners.

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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