Garden Gym — Where to Start? Options, Costs and Sizes

A gym at home is the end of excuses: 30 seconds from the sofa to your warm-up, no commute, no membership, the equipment always free. But “a gym at home” can mean four very different things — and each one has a different budget, different requirements and a different ideal owner.

This guide helps you pick the right format before you spend a single pound.

Four ways to build a gym at home

The first three are projects you take on yourself or with a local builder — we don’t convert rooms. Our work is the fourth: the Gym Box, a finished gym module for the garden.

Option 1: a spare-room gym

The fastest route — adapting a room you already have: reinforcing the floor, mirrors, lighting and equipment. The limits are noise (a treadmill or dropped weights carry through the whole house) and floor area.

➜ Kit that fits a small room: the best home gym equipment.

Option 2: a garage gym

Concrete floor, decent ceiling height, a separate entrance — a garage is built for strength training. The challenges: winter temperatures (an uninsulated UK garage sits at -5 to +5°C in January) and sharing the space with the car.

➜ Full walk-through: garage gym setup guide.

Option 3: a basement gym

Naturally cool in summer, quiet, and usually unused. The two things that matter most are ventilation and good LED lighting — basements are short on natural light and airflow.

➜ Where to begin: basement gym, step by step.

Option 4: a garden gym (a module)

A ready-made, fully insulated steel module placed in your garden — a standalone building dedicated to training and nothing else. It’s the most expensive format, but the only one that takes nothing away from the house: no room given up, no noise indoors, no compromises. It’s also the one we build: 12 weeks from your deposit, installed on site in 1–2 days.

➜ Sizes, prices and variants: Gym Box container gyms.

A home gym for the whole family

One pattern shows up again and again across our projects: a gym at the house changes the habits of everyone in the household, not just the person who ordered it.

• Children and teenagers — Swedish wall bars, a mat, light dumbbells; training becomes a normal part of the day rather than “going to a class”
• Your partner — a cardio corner or yoga and Pilates zone alongside the strength area
• Grandparents — a recumbent bike and mobility work, with no self-consciousness in front of strangers

If the gym is meant to serve more than one person, aim for at least 24–30 m² — two people training at the same time need separate zones.

Where to start? A five-step plan

1. Count the users — one person: 12–21 m² is plenty; a family: 24 m² and up
2. Assess the space — a free room, garage or basement; and if there isn’t one, will the garden take an 8×4 m module with crane access?
3. Set the budget — a DIY room or garage fit-out typically costs a few thousand pounds; a garden Gym Box starts from £26,000 +VAT for the module (delivery quoted separately by postcode); finance and leasing options available for businesses
4. Check the formalities — indoor adaptations rarely need planning permission (Building Regulations can still apply); a garden module often falls under permitted development, but a chat with your local planning authority before you order is always worth it
5. Plan the equipment last — space and services first, then kit chosen around your goals

Torn between the garden and a room inside the house? We settle that comparison in garden gym vs home gym.

See our clients’ garden gyms

From compact 21 m² modules to spacious family gyms — real projects, with budgets and photos. The projects we show are in Poland, where we build our modules; we also deliver to the UK and Ireland.

Not sure which Gym Box size fits your garden and budget? We’ll talk it through and price it up — no pressure.

➜ Free consultation · response within 24 hours ➜ Build your quote

You can write to us in any language — calls and video calls are in English.