How to plan a gym floor plan and layout
Facts checked October 2026
A gym layout is mostly an exercise in clearances: how much floor each machine needs, the safety zone around it, and walkways between zones. The numbers below are the published allowances designers work from.
Space per piece of equipment
ACSM's Health/Fitness Facility Standards and Guidelines allows 25 to 50 square feet per station on the fitness floor. Equipment the user stays within, such as bikes, sits at the low end; equipment with moving users or loaded bars needs the high end.
For treadmills specifically, an ACSM's Health & Fitness Journal article notes the National Strength & Conditioning Association standard of at least 45 sq ft per treadmill.
The clearance behind treadmills
Treadmill manufacturers specify a clear zone behind the running belt. In a case discussed by the Health & Fitness Association, the treadmill maker's manual required at least 3 feet wide by 6 feet deep behind the belt; the injured member fell into a machine about 3 ft 10 in behind the treadmill, and none of the gym's 21 treadmills had the 6-foot zone.
Plan treadmill rows with the 6-foot zone first, then check each manufacturer's manual and ASTM requirements for the model you buy.
Flooring by zone
Thicker rubber goes where weights drop. Flooring makers' guidance differs, so treat these as ranges and check the product's own impact rating.
| Zone | Light In Fitness | LMCC Fitness | Gym Gear |
|---|---|---|---|
| Cardio | 15 mm | 4–8 mm rolled rubber | 20 mm for lighter zones |
| Machines / general strength | 20–25 mm | 4–6 mm rolled rubber | 30 mm for heavier equipment |
| Free weights | 20–25 mm | 8–15 mm tiles | 30 mm |
| Barbell drop zones | 40 mm | 15–20 mm tiles or a lifting platform | 40 mm (its thickest tile) |
Density matters as much as thickness: a supplier notes a low-density 30 mm tile can perform worse under dropped barbells than a high-density 20 mm one.
Putting it together
Place the fixed constraints first (columns, doors, power for treadmills), then the clearances, then the equipment. Group equipment into zones (cardio, machines, free weights, functional/turf) so drop zones and walkways do not cross.
Many distributors and manufacturers offer free gym design and 3D layouts with a quote. Compare flooring makers, and see what a fit-out costs.
Questions
How much space does each piece of gym equipment need?
ACSM's Health/Fitness Facility Standards and Guidelines allows 25 to 50 square feet per station. Treadmills need more: the NSCA standard is at least 45 sq ft per treadmill.
How much space do you need behind a treadmill?
Treadmill manufacturers commonly specify at least 6 feet deep by 3 feet wide clear behind the running belt for user safety and maintenance. Check the manual for your model.
How thick should gym flooring be?
Makers' guidance ranges from about 4–15 mm in cardio areas to 40 mm in barbell drop zones. Light In Fitness, for example, recommends 15 mm for cardio, 20–25 mm for machines and 40 mm for drop zones.
What kind of floor should a gym have?
Rubber flooring for most zones, as rolls or interlocking tiles, with thicker high-density rubber or lifting platforms where weights are dropped, and turf lanes for sled work.
Sources
- FitSupply: space per piece of gym equipment (ACSM allowance)
- ACSM's Health & Fitness Journal: facility layout and maintenance concerns
- Health & Fitness Association: designing your gym, follow the guidelines
- Light In Fitness: rubber gym flooring guide
- LMCC Fitness: gym rubber flooring buying guide
- Gym Gear: commercial gym flooring guide (PDF)
- Superstrata: how to specify gym flooring
Pricing a fit-out?Describe the gym once and we'll pass it to matching manufacturers and distributors.