24 m² – More than enough for effective training

The Gym Box 8×3 is our most compact model – and our bestseller. In 24 m² you can set up a complete training environment that leaves nothing to be desired.
Perfect for those who train alone or occasionally with a partner, have a modest-sized garden and don’t want to waste time on commuting or membership fees.
What fits in 8×3 m?

Strength zone:
- Power rack or half rack
- Barbell set (up to 200 kg)
- Adjustable bench
- Dumbbell set (2–32 kg)
Cardio:
- 1 treadmill or cross-trainer
Functional:
- Pull-up bar (integrated into rack)
- Gymnastics mat
- TRX suspension system
With smart planning, this is absolutely achievable.
Technical Specifications

| Feature | Value |
|---|---|
| External dimensions | 8.0 × 3.0 m |
| Usable floor area | 24 m² |
| Internal height | 2.7 m |
| Wall thickness | 120 mm (insulated) |
| Flooring | Rubber granulate mat 20 mm |
| Heating | Electric heating or heat pump |
| Electrics | 3× outlets, LED lighting |
| Window | 1× tilt/turn window |
| Door | Insulated steel door with security lock |
What’s Included
- Container module (steel, galvanised, insulated)
- Interior fit-out – floor, walls, ceiling, lighting
- Electrical installation
- Heating/air conditioning
- Training equipment per your package
- Installation and placement on your foundation (delivery quoted separately by postcode)
How much does the Gym Box 8×3 cost?
From £30,000 +VAT for the base module. Turnkey packages including installation start from £40,600 incl. VAT (the ready Gym Box 8×3 Standard) and reach about £52,600 incl. VAT for a fully kitted-out strength spec (Body-Solid, Eleiko, Technogym). Delivery is quoted separately by postcode.
➜ Build your quote in the configurator
FAQ
Do I need planning permission?
It depends on your site and local authority. Many garden Gym Boxes fall under permitted development, but protected areas and plots close to a boundary have stricter rules. We check your address free of charge before you sign.
Can I expand later?
Yes – by adding a second module. Planning for future expansion from the start is recommended.
How long does delivery take?
Your Gym Box is ready 12 weeks from your deposit.
Short on space?
For the smallest plots see the Gym Box 7×3 or the ready-made Gym Box 6×3 Compact package. Need more room for two? Compare the Gym Box 6×5.