Kim Patel
@cardiokim
Cardio manager2026-08-12
We are planning a 4,200 sq ft commercial floor and the vendor proposal splits the space roughly 50/50 between cardio and strength. Our member survey skews 60% strength-focused, so I want to know whether the standard split is a starting point or a rule.
For a general commercial gym, start at 30-35% cardio and 25-30% strength, with the rest split between free weights, functional training, and circulation — then adjust by member profile and observed utilization. A 50/50 split is a vendor default, not a data-driven answer; member profile and usage data should move the mix.
A general commercial gym starting ratio: 30-35% cardio, 25-30% strength, 15-20% free weights, 10-15% functional training, and 10-15% for reception and circulation.
Member profile shifts the mix: a 60% strength-focused membership justifies tilting zone space toward strength zones and free weights beyond the generic split.
Six core categories carry 85-90% of member usage — the ratio matters less than keeping those categories well-provisioned and in proportion to member demand.
The strength-to-cardio question is really a member-profile question wearing a layout costume. The generic commercial ratio is a defensible starting point; the correct ratio for a specific facility comes from its member base and observed utilization.
The Starting Ratio
A general commercial gym works from this allocation:
| Zone | Share of floor |
|---|---|
| Cardio | 30-35% |
| Strength | 25-30% |
| Free weights | 15-20% |
| Functional training | 10-15% |
| Reception and circulation | 10-15% |
That allocation matches how a broad member base uses a floor — cardio as the entry point, strength as the commitment zone. The zone-by-zone breakdown and placement rules are in our commercial gym floor layout guide.
It also assumes you are running a broad-member facility. A boutique studio should compress the same plan around a single signature experience instead, which is why the ratio question has a different answer by facility type — big-box versus boutique strategy works through that divergence.
Member Profile Moves the Mix
A 60% strength-focused membership justifies tilting zone space toward strength and free weights beyond the generic split — the opposite of a vendor’s 50/50 default. The member survey is the first input; observed utilization is the correction after opening.
The adjustment runs the other way for an older-skewing member base. A morning-heavy, 60+ membership shifts demand toward low-impact and balance work, and the floor needs a mind-body slot for it — the space-per-participant case for running a balance class is in programming tai chi for older members.
The documented case is blunt: one facility opened on a vendor 50/50 split, found strength zones saturated at peak while cardio machines sat idle, and corrected to roughly 35% strength allocation within a year. The congestion pattern changed immediately, which is the tell that it was an allocation problem rather than a capacity problem. The layout methodology that ties member profile to zone allocation is in our guide on building a profitable gym floor plan.
Utilization Validates the Split
Six core categories — treadmills, selectorized strength, functional trainers, squat racks, ellipticals, and bikes — carry roughly 85-90% of member equipment usage. The ratio matters less than keeping those core categories proportioned to actual demand.
A 50/50 split that leaves half the cardio idle and saturates strength is a ratio failure, not a space failure. The utilization and revenue-attribution tables are in our analysis of which equipment makes gyms more money, and the congestion symptoms that tell you the split is wrong are in why your gym feels crowded.
The Maintenance Cost of the Mix
The ratio is also an operating-cost decision. Treadmills and cable-based machines account for 60-70% of total maintenance spend, so a strength-heavy floor costs less to run than a cardio-heavy one at the same equipment value.
That does not argue for a strength-heavy floor — it argues for costing the mix you actually need. A cardio zone that matches real demand and sits on a real preventive maintenance schedule costs far less than the same zone run reactively, and the per-unit economics are in the treadmill revenue model.
Model your floor with the ROI calculator and see the full facility-planning set in the Solutions hub.
