Gym cleaning checklist: daily, weekly and monthly tasks, and what research found on equipment

Members judge a gym on how it feels to walk in: the smell of the change rooms, the grip on a dumbbell, a smudge-free mirror. A small German study published in July 2026 adds a useful fact to that: equipment that starts the day freshly disinfected picks up bacteria again within hours of opening. So a gym needs two layers of cleaning: a thorough clean while it's closed, and simple habits that keep things under control while members are training. Here's what the research found, followed by a checklist by zone and frequency that you can adapt.

What researchers found on gym equipment

Researchers in Germany swabbed 12 machines in one Munich fitness studio three times a day (before opening, at noon and in the evening) for five weekdays, 180 samples in all. The studio was disinfected once a day after closing, with quaternary ammonium wipes on handles, touchscreens and benches, and nothing scheduled during opening hours.

• Contamination came back fast. After adjusting for other factors, a noon sample had about seven times the odds of growing bacteria as a sample taken before opening. Evening samples weren't clearly different from morning ones.
• Most of it came from people. About 72% of the bacteria identified were types that normally live on human skin. Staphylococcus species turned up on 54 of the 180 samples (30%).
• Some machines stood out. The leg extension had the highest rate of Staphylococcus, followed by the seated row. The ab crunch machine and the upper body ergometer showed rising contamination over the week.

What it doesn't tell us

It's one gym, studied for one week, using culture tests only. The authors point out that finding bacteria on a surface isn't the same as a risk of infection, and they didn't track whether anyone got sick, or whether members wiped equipment or washed their hands. Their scoring of which machines were riskiest is described as exploratory. It's a good snapshot of how quickly equipment is recontaminated, not proof that any one cleaning routine prevents illness.

What other studies add

Three other studies point the same way, with the caveat that each is small and none was done in Australia:

• Viruses on weights (United States, 2006). In two fitness centres in a military community, viruses, mostly the rhinoviruses behind common colds, were found on 63 of 100 hand-contact surfaces. Weight equipment was contaminated more often than cardio machines (73% versus 51%). No disease-causing bacteria were found. A week of twice-daily disinfection didn't lower how often viruses were found, which suggests equipment is recontaminated almost as fast as it's cleaned.
• Staphylococcus aureus across 16 gyms (United States, 2019). A pilot study in Ohio found S. aureus on 38% of 288 swabs. A weight ball, a cable curl bar, weight plates and treadmill handles were among the most contaminated surfaces. Bathroom levers and door handles were among the least.
• Cleaning products (Saudi Arabia, 2026). Across six gyms, the routine products used by gym staff cut total bacterial counts on equipment by about 64%, but not to zero. Two of the six gyms were using cleaning products with no disinfecting ingredient at all.

The practical lessons: start each day from a thorough clean, keep members wiping down during busy hours, focus on the equipment hands touch most, and check that the product you use as a disinfectant actually is one.

Every clean (daily, or every visit)

• Equipment touchpoints: dumbbell and kettlebell handles, bars and plates, cable attachments, adjustment pins and handles, bench and seat pads, cardio handles and consoles. Free weights and machine handles deserve the most attention.
• Mats and studio floors: clean group fitness mats and studio floors after the last class.
• Gym floors: vacuum or sweep, then mop. Follow the flooring manufacturer's instructions for rubber flooring, because the wrong product can damage it.
• Change rooms and showers: toilets, basins, showers, benches, mirrors and floors, and leave floors as dry as possible. Healthdirect notes that tinea can be caught from the floors of showers and shared change rooms.
• Reception and entry: counters, door handles, access keypads, glass doors and touchscreens.
• Bins: empty and reline, including bins next to wipe stations, which fill fast.
• Supplies: refill wipe dispensers, hand sanitiser, soap and paper towel.
• Drinking fountains and bottle fillers.

Weekly

• Under and behind machines and racks, where dust and debris collect.
• Storage racks and shelving for weights, balls and studio equipment.
• Full mirror and glass clean, beyond daily spot cleaning.
• Vents, ledges and skirting boards.
• Empty lockers, inside and out.

Monthly and periodic

• Change room detail: grout, shower screens and drains.
• Upholstery check: cracked or split vinyl on benches and pads can't be cleaned properly, so report it to the gym for repair.
• Carpeted areas such as offices or a reception lounge may need periodic steam cleaning.

Choosing products: clean first, then disinfect

Sweat and grime stop a disinfectant from working well, so dirty surfaces need cleaning first. Then check the label: a product only disinfects if it says it does, and the label says how long the surface must stay wet. In the Saudi study, label contact times ranged from 30 seconds to 5 minutes, so wiping a surface dry straight away may undo the work. Keep the safety data sheet for every product on site; Safe Work Australia explains what they cover.

Between cleans: what members and staff can do

• Wipe-down stations near each zone, kept stocked, with clear signs asking members to wipe equipment after use.
• Pre-moistened wipes or a cloth and spray bottle? Wipes avoid spraying product into the air, which is better for everyone breathing it. Our guide to cleaning sprays and lung health explains why.
• Hand sanitiser at the entry and around the floor.
• A towel policy for benches and mats.
• A sign in the showers suggesting thongs, which Healthdirect recommends for communal showers.
• Staff spot checks during busy periods: overflowing bins, wet change room floors and empty wipe dispensers.

How often should a gym be cleaned?

A gym that's open every day needs a full clean every day, plus the weekly and monthly tasks above. The research suggests that's the minimum, not the whole answer: equipment is recontaminated within hours, so member wipe-downs and staff checks during peak times do the rest.

When to clean

Most gyms are cleaned overnight, early in the morning, or in a quiet gap between classes. For 24-hour gyms, the best time is the quietest window in your access data, which is usually the early hours of the morning.

How we approach it at Clean Spaces

We clean gyms and fitness studios to a checklist built around the space: equipment wipe-downs, high-touch points, change rooms, showers, mats and floors. Cleaning is scheduled before opening, after close or on weekends, so members walk into a fresh space. We bring our own equipment, use eco-friendly products, and can supply consumables such as soap and paper towel on request. For carpeted areas that need steam cleaning, we can try to arrange it for you.

This guide is general information, not medical advice. If you have a skin infection or other health concern, talk to your GP or pharmacist.

Sources

• Martens A, Schauer M, Motevalli M, Mair S, König B. Microbial contamination of gym equipment: diversity patterns, temporal dynamics, Staphylococcus hotspots, and device-level risk indices. Pathogens. 2026;15(7):707.
• Al-Sowayan NS, Alrobaish SA, Al Suliman GG, et al. Effect of routine disinfection on bacterial composition and load of gym equipment surfaces in Qassim region, Saudi Arabia. Frontiers in Public Health. 2026;14:1915360.
• Goldhammer KA, Dooley DP, Ayala E, et al. Prospective study of bacterial and viral contamination of exercise equipment. Clinical Journal of Sport Medicine. 2006;16(1):34–38.
• Dalman M, Bhatta S, Nagajothi N, et al. Characterizing the molecular epidemiology of Staphylococcus aureus across and within fitness facility types. BMC Infectious Diseases. 2019;19(1):69.
• Healthdirect Australia. Tinea. Last reviewed October 2025.
• Safe Work Australia. Safety data sheets.

Keep reading

• Are cleaning sprays bad for your lungs? What a 20-year study found
• Medical centre cleaning requirements in NSW: what GP and allied health practices need
• All cleaning guides