How many porta potties does OSHA require?
The ratio is fixed but not one-size-fits-all. Under 1926.51(c)(1), a crew of 20 or fewer needs 1 toilet seat. Between 20 and 199 workers, add 1 seat and 1 urinal per 40 people. At 200 or more, that ratio loosens to 1 per 50. A 35-person framing crew in Greeley needs 2 seats, not 1. Run the math wrong and you're either overpaying or out of compliance. If you'd rather not do the arithmetic yourself, our guide on how many units you need walks through it by crew size. OSHA also requires potable water at the jobsite under 1926.51(a)(1), which is separate from toilet count but often gets bundled into the same delivery. Most contractors pair standard units with a handwashing station rental to cover both requirements in one stop. Pricing for a standard porta potty rental runs 100 to 350 dollars a day depending on term length, with monthly rates far more common on active job sites than daily ones. Crews asking how many porta potties do I need osha for a mixed crew size should run the headcount through the ratio above before requesting a quote, and the same logistics apply whether the delivery route runs through Greeley or a portable toilet rental oshawa job site outside Colorado, or a storage container rental oshawa site staging materials nearby.
What does Cal OSHA require that's different?
Cal OSHA portable toilet requirements do not apply in Colorado. Cal OSHA portable toilet requirements construction crews follow in California are stricter in places, but Cal OSHA does not apply in Colorado. Colorado sites follow federal OSHA under 1926.51(c)(1) for construction and 1910.141(c)(1)(i) for general industry workplaces like warehouses or fixed shops. The distinction matters because a farm crew, a retail buildout crew, and a road crew in Greeley can fall under different rules depending on the work itself. Agricultural operations have their own standard: 1928.110 requires 1 field sanitation facility per 20 hand-labor employees, reachable within a quarter mile walk. That's relevant for farm and agricultural restrooms serving fields outside Greeley proper, where distance to the nearest unit is the compliance question, not just headcount. If your crew works indoors doing general industry tasks rather than active construction, check 1910.141(c)(1)(i) instead of the construction ratio, since the numbers differ.
Where should porta potties be placed on a jobsite?
Placement rules aren't spelled out by OSHA distance figures, but ADA and access standards fill the gap. If you're clustering multiple single-user units, ADA Standards section 213.2 requires at least 5 percent to be accessible, with a minimum of 1 unit regardless of cluster size. That accessible unit needs a 36 inch clear route per section 403.5.1, a 32 inch door opening per 404.2.3, and a 60 inch turning circle inside per 304.3.1. Our ADA accessible porta potty units meet those specs and rent for 120 to 240 dollars a week. Placement in the public right of way, like a lane closure or sidewalk setback, needs confirming with the City of Greeley before delivery. We don't guess on that. Check our porta potty placement guide for the layout questions to ask before units show up, and see OSHA portable toilet distance requirements covered alongside permit basics if your site sits near a public walkway.
Do handwashing rules apply separately from toilets?
Yes, and they get missed often. 1926.51(f)(1) specifically covers washing facilities for crews applying paints, coatings, herbicides or insecticides, or handling other harmful contaminants; it is not a blanket handwashing mandate for every jobsite. Where it does apply, 29 CFR 1910.141(d)(2) requires soap and towels or a hand-drying device. Hand sanitizer alone doesn't satisfy that standard. A portable sink rental with actual running water and soap covers both rules cleanly, while a hand sanitizer station rental is a supplement, not a substitute, on sites doing coating or pesticide work. For general jobsite sanitation without those contaminants, 1926.51(c) still governs toilet counts on its own. Crews doing demolition or renovation work should also check what cannot go in a dumpster before staging a construction dumpster rental next to the restroom units, since hazardous debris changes both handling and disposal.
Greeley job sites near Windsor, 14.6 miles northwest, or Johnstown, 16.1 miles southwest, follow the same federal ratios; distance to the nearest town doesn't change the OSHA math, only delivery logistics. For sites spanning Greeley and Evans, 11.5 miles south, or Severance, 11.4 miles northwest, we quote unit count once and schedule one delivery route. See construction site services for how we bundle toilets, fencing and dumpsters on multi-week builds, or start with porta potty rental in Greeley, CO for the base page on service and pricing.
Frequently asked questions
How many porta potties do I need for a 20-person crew?
One standard unit satisfies OSHA 1926.51(c)(1) for a crew of 20 or fewer. Once you add a 21st worker, the ratio shifts and you need 2 seats. Check our how many porta potties do I need page for crew sizes above 40.
Does OSHA require heated or winterized units?
OSHA doesn't set a temperature standard for portable toilets. Cold weather still affects tank function and service intervals. See porta potty in winter for how freezing temps change servicing on Greeley job sites.
What's the difference between construction and general industry toilet rules?
Construction sites follow 1926.51(c)(1). Fixed workplaces like offices or warehouses follow 1910.141(c)(1)(i), a separate general industry standard with its own ratio table. Confirm which classification your site falls under before counting heads.
Do I need a permit to place a porta potty in Greeley?
Placement on private property usually doesn't need a permit. Right-of-way placement needs confirming with the city. See porta potty permit requirements before scheduling delivery near a public street.
Can one company handle toilets, fencing and dumpsters together?
Yes. Greeley Porta Pros delivers temporary fence rental, roll-off dumpster rental and restroom units on the same route, which cuts delivery fees compared to separate vendors on one Greeley site.
Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.