Question 1

Who is the Gym Box 9×3 best suited for?

Accepted Answer

The 9×3 m (27 m² / 290 sq ft) Gym Box is the practical sweet spot for couples and small families who want strength, cardio and functional training in one space. Compared to the 8×3, you get a full extra training zone — typically a dedicated cardio corner or a mobility/stretching area. Popular in larger suburban gardens in Surrey, Cheshire, the Cotswolds and Scottish Central Belt properties.

Question 2

What equipment can I fit in 27 m²?

Accepted Answer

A typical 9×3 m fit-out: power rack with Olympic bar and 150–200 kg of plates, adjustable bench, full dumbbell rack (5–40 kg), two cardio machines (rower + Assault Bike, or treadmill + bike), pull-up rig, kettlebells, sled track and a functional accessory wall. There is enough room for two people to train at the same time without bumping into each other.

Question 3

How much does a Gym Box 9×3 cost in the UK?

Accepted Answer

Base 9×3 m shell from around £8,500. Mid-spec build with insulation, electrics, sports flooring and Thorn Fit equipment package: £16,000–£24,000. Premium 9×3 m with full kit, AC and premium finishes: £24,000–£32,000. Delivery, crane offload and turnkey assembly included for most UK postcodes. Groundworks (slab or screw piles) typically £1,800–£3,800 from a local groundworker.

Question 4

Will a 9×3 m fit in my garden?

Accepted Answer

The footprint is 9 m × 3 m. Add at least 0.5 m clearance on all sides for installation, walking space and damp protection — total area needed is roughly 10 × 4 m (40 m²). Most semi-detached and detached suburban gardens in the UK accommodate this size easily. Minimum delivery access width: 2.5 m for a side-access lift, or crane-over for landlocked gardens (still standard practice).

Question 5

Is the 9×3 m suitable for British winters?

Accepted Answer

Yes. 120 mm wall insulation, double-glazed openings, EPDM roof membrane and the option of electric heating or split AC keep the interior at a steady 18–22°C from -20°C to +35°C outside. Typical winter electricity cost for 5–6 training sessions per week: £40–£70 per month. The shell is rated for UK wind loads up to 100 mph and freeze-thaw cycles.

Feature	Value
External dimensions	9.0 × 3.0 m
Usable floor area	27 m²
Internal height	2.7 m
Wall thickness	120 mm (insulated)
Flooring	Rubber granulate mat 20 mm
Heating/cooling	Split air conditioning (heat + cool)
Electrics	4× outlets, 1× heavy-duty, LED
Windows	2× tilt/turn windows
Door	Insulated steel door

Gym Box 9×3 – More Space, More Options

The most popular balance: big enough for everything, small enough for any garden

What fits in 9×3 m?

Technical Specifications

Typical configurations

How much does the Gym Box 9×3 cost?

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