How Many Porta Potties Does OSHA Require?
The math starts with headcount, not square footage. Under OSHA 1926.51(c)(1), a crew of 20 or fewer needs one unit. Once you pass 20 workers, add a toilet and a urinal for every 40 people, and that ratio holds until you cross 200 workers, where it shifts to one seat and one urinal per 50. A general contractor running a subdivision build near American Fork, 5.9 miles southeast of Lehi, still applies the same table OSHA wrote for every construction site in the country. That holds whether the crew is local or a company offering portable toilet rental oshawa style service out of province, since the federal ratio doesn't change by region. There's no local override that raises or lowers the count. Anyone searching osha portable toilet requirements construction or cal osha portable toilet requirements will land on the same federal table for a Lehi site. OSHA doesn't publish osha portable toilet distance requirements as a fixed footage either, so proximity to the work area, not a measured distance, is what an inspector checks. If your crew rotates or subs come and go, count peak workers on site, not average headcount. That's also the fastest way to answer how many porta potties do i need osha style, by headcount at peak, not by acreage. Our how many porta potties do I need guide walks through examples by crew size, and if you're staging a construction site services package for a multi-month build, it's worth locking the ratio in before delivery rather than adding units mid-job. Water matters too: OSHA 1926.51(a)(1) requires potable water at the site regardless of toilet count.
What Does OSHA Say About Handwashing?
OSHA 1926.51(c) covers toilets, but handwashing has its own trigger. OSHA 1926.51(f)(1) requires washing facilities specifically where workers apply paints, coatings, herbicides or insecticides, or handle other harmful contaminants. It is not a blanket handwashing mandate for every job site. Framing crews and general labor don't automatically trigger it. Painting subs, striping crews and anyone applying chemical treatments in Lehi do. Pair that with 29 CFR 1910.141(d)(2), which applies in general industry settings and requires soap plus towels or a hand-drying device. Hand sanitizer alone doesn't satisfy that standard. A standard handwashing station rental or a portable sink rental covers both cases. If your crew is deciding between a sink setup and sanitizer-only stations, our handwashing requirements page breaks down which jobs actually need running water versus a lower-cost hand sanitizer station rental. Agricultural operations follow a different standard entirely, OSHA 1928.110, which sets one facility per 20 hand-labor employees within a quarter mile walk.
Where Should Units Be Placed on Site?
Placement drives compliance as much as the count does. OSHA doesn't publish a fixed foot distance from the work area in the general construction toilet rule, so the practical standard is proximity workers will actually use, on stable, level ground the delivery truck can reach. A porta potty placement guide matters more on tight urban lots than on open lots outside Lehi. If you're running a temporary fence rental around the perimeter, leave a gap wide enough for our truck to service units without dropping fence panels. Accessible units follow ADA Standards separately: where single-user units are clustered, at least 5 percent, and never fewer than one, must be accessible per ADA Standards section 213.2, with a 60 inch turning circle required under ADA Standards section 304.3.1. Our ADA accessible porta potty units meet that clear-width and turning-radius spec. If you're not sure the corner of the site you picked works for delivery and pumping trucks both, check our porta potty rental checklist before the date locks in.
Do I Need a Permit for Portable Toilets in Lehi?
Placement in the public right of way needs confirming with the city before delivery. We haven't verified a specific Lehi ordinance number for portable toilet permits, so don't take a fixed fee or rule from anyone quoting one from memory, including us. What we can confirm: sites entirely on private property, set back from sidewalks and roads, typically avoid the right-of-way question altogether. If your project sits close to a curb or shared access road, call the city first. Our porta potty permit requirements page covers the general pattern we see across jobs, and dumpster permit requirements follows a similar logic if you're pairing a roll-off dumpster rental with your toilet order. Renovation crews doing a home renovation porta potty setup on a residential lot rarely trigger permit questions at all, since the unit sits on the driveway or yard, not the street.
Frequently Asked Questions
Does Cal OSHA use the same ratio as federal OSHA?
Cal OSHA applies to California job sites, not Utah ones. Lehi contractors follow federal OSHA 1926.51(c)(1): one toilet per 20 workers, then one toilet and one urinal per 40 up to 200. If you run crews across state lines, confirm which standard governs each site rather than assuming they match.
How many porta potties do I need for a 30-person crew?
Under OSHA 1926.51(c)(1), 30 workers sit in the 20-to-200 band, so you need at least one toilet and one urinal. Many contractors round up for turnover between shifts. See our how many porta potties do I need page for staffing patterns beyond the bare minimum.
What size tank does a standard unit have?
A standard unit carries a 60 to 70 gallon holding tank and stands about 92 inches tall on a 44 by 48 inch footprint. That's enough capacity for the weekly service interval most sites run. Check standard porta potty rental for full specs.
Is hand sanitizer enough to meet OSHA handwashing rules?
No. 29 CFR 1910.141(d)(2) requires soap and towels or a hand-drying device; sanitizer alone doesn't satisfy it. OSHA 1926.51(f)(1) applies specifically when workers handle paints, coatings, herbicides or insecticides. A handwashing station rental covers both requirements properly.
Do I need an accessible unit on every job site?
Not every site, but where you cluster multiple single-user units, ADA Standards section 213.2 requires at least 5 percent to be accessible, minimum one unit. Public events and job sites with visitor access are where this comes up most. See ADA accessible porta potty for specs.
Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.