Who sets the rules in Florida
Florida does not run its own occupational safety program for private-sector employers, so federal OSHA covers most private construction work in the state. The federal construction sanitation standard is 29 CFR 1926.51. Public-sector employers can be handled differently, and contract documents sometimes add requirements of their own. Confirm what applies to your project with OSHA, your safety manager or the project specifications.
The commonly cited toilet ratio
The standard sets minimum toilet facilities based on the number of employees at the site. In summary, as commonly cited:
- 20 or fewer employees: at least one toilet.
- More than 20 and fewer than 200: one toilet seat and one urinal per 40 employees.
- 200 or more: one toilet seat and one urinal per 50 employees.
The rule also addresses handwashing, keeping facilities maintained in a sanitary condition and what to do on jobs where fixed facilities are impractical, such as mobile crews. Details and exceptions apply, so read the standard itself and verify the current text before relying on any figure, including ours.
Worked examples
Numbers are easier to picture with a few crews. These examples apply the commonly cited figures and round up, which is how the planning calculator treats them. They illustrate the arithmetic, not a compliance determination.
- A 12-person framing crew. Twenty or fewer employees points to at least one toilet. Many contractors still add a second unit if the crew works a long day in summer heat.
- A 55-person subdivision crew. More than 20 and fewer than 200, so one seat and one urinal per 40 workers. That works out to two when rounded up. Staggered breaks and a spread-out site often argue for more.
- A 240-person high-rise crew. At 200 or more the commonly cited figure is one per 50, which rounds up to five. A tall building adds another question: how far workers must travel to reach the units from upper floors.
Also note that the figure counts toilet seats and urinals together in some descriptions of the table. Ask us which units in your order include a urinal, and confirm with your safety manager how your project counts them.
How our calculator uses it
The construction mode in the rental calculator applies the commonly cited figures above. It is a planning aid for ordering units, not a compliance determination.
Why many sites go beyond the minimum
- Shifts and breaks. If an entire crew breaks at once, lines form no matter what the ratio says.
- Heat and humidity. Florida summers increase water intake and restroom use. Crew comfort and productivity improve when units are not overworked.
- Everyone on site. Count subcontractors, inspectors, delivery drivers and visitors at peak.
- Mixed crews. A site with men and women benefits from more than one unit even at small headcounts.
- Overlapping trades. Peak headcount often happens when several trades are on site together, such as drywall and electrical on the same floor.
Multi-employer sites and who orders what
On larger projects several employers share one site. Who supplies toilets is normally spelled out in the contract between the general contractor and the subs. A common arrangement is that the general contractor provides facilities for everyone, but not always. Settle it before mobilization so the site is not short on day one and does not end up with duplicate units either. When you call us, tell us whether you are ordering for the whole site or just your own crew.
Placement on a real jobsite
- Keep units close enough to the work that crews are not hiking across the whole property.
- Choose firm ground clear of haul routes, swing radius and open excavations.
- Leave a clean lane for the service truck, and avoid placing units where trench spoil or stored materials will block them later.
- Put handwashing next to the toilets and near eating areas. See handwashing stations.
- Plan for relocation as the site changes. See long-term rentals.
Heat and the work day
Federal OSHA publishes guidance on preventing heat illness, and many employers adopt written heat policies. This guide does not describe any specific heat rule; check OSHA's current guidance and your company policy. What we can say from the logistics side is that shaded unit placement, nearby handwashing and a sensible servicing interval all make a hot site easier to manage.
Servicing schedules
Weekly servicing is a common starting point, but a large crew, summer heat or a heavily used site may need more. Agree on a schedule at the start. Our servicing page explains what a typical visit includes.
Storms and site security
During hurricane season, builders often include a storm plan for equipment, including portable toilets. Ask about securing or removing units ahead of a storm, and about getting them back quickly afterward. The storm recovery guide covers rebuild and cleanup crews.
Common mistakes
- Counting only your own employees and forgetting subcontractors and inspectors.
- Placing units at the edge of the property, far from where people work.
- Forgetting that a night or weekend shift still needs facilities.
- Putting units in a spot that later gets blocked by materials or equipment.
- Assuming the minimum is the right number for a hot, crowded site.
Local and owner requirements
Counties, cities, HOAs and project owners may require screening, specific placement or documentation. Check early, especially in dense areas where a unit may need to sit on a sidewalk or alley. Our construction rentals page goes over what to have ready.
To plan an order for your crew, call us with your headcount, schedule and site address.
Last updated November 4, 2026. This guide is general information, not legal, engineering or regulatory advice.