How many porta potties do I need for an OSHA job site?
Start with the headcount, not the square footage. OSHA 1926.51(c) sets 1 unit for 20 workers or fewer, 1 toilet seat and 1 urinal per 40 workers once you're above 20, and 1 seat and 1 urinal per 50 workers at 200 or more. A crew of 35 in Greensboro needs two units under that math, not one. Run the numbers yourself with our how many porta potties do I need guide before you call, since osha portable toilet requirements construction crews rely on scale with headcount alone, not job size. Standard units rent for a bracket you can check on the porta potty rental cost page, and most jobsite orders get quoted by the week rather than the day. If your crew works a job in Kernersville, 18.2 miles west of Greensboro, or out toward Burlington, the ratio doesn't change. OSHA doesn't scale by city, only by worker count, and a portable toilet rental oshawa crew might size the same job differently anyway since that's a different jurisdiction with its own rules. Agricultural operations follow a separate standard, 1928.110, which sets one facility per 20 hand-labor employees within a quarter mile walk.
What does OSHA say about handwashing on a construction site?
OSHA 1926.51(a)(1) requires an adequate supply of potable water at every place of employment, and that's a baseline most Greensboro sites already meet with a cooler and cups. Actual washing facilities with soap and towels come from 29 CFR 1910.141(d)(2), and hand sanitizer alone does not satisfy it. Crews spraying paints, coatings, herbicides or insecticides trigger a stricter rule: 1926.51(f)(1) requires washing facilities specifically for those contaminant exposures, not general dirt from a normal workday. A painting crew near Jamestown, 11.5 miles southwest of Greensboro, needs a wash station on top of toilets, and cal osha portable toilet requirements construction sites follow a similar contaminant-triggered washing rule if the crew works under that state's jurisdiction instead. Our handwashing station rental covers that gap, and a portable sink rental works for smaller crews. For sanitizer-only setups that don't meet the standard, see hand sanitizer station rental and compare against actual handwashing requirements before you order.
Are there distance or placement rules for portable toilets?
OSHA doesn't publish a fixed foot distance from the work area to the toilet, despite what a lot of searches for osha portable toilet distance requirements or cal osha portable toilet requirements assume. The rule is functional access, not a tape-measure number, and that's true whether you're staffing a site in Greensboro proper or 13.7 miles southwest in High Point. Placement in the public right of way is a separate question from OSHA compliance, and that needs confirming with the city before delivery, not assumed from a general rule. Our porta potty placement guide walks through firm, level ground and truck access, since a service truck needs clear room to maneuver on pump day. If you're pairing a unit with a dumpster on the same job, a roll-off dumpster rental needs roughly 60 feet of straight clearance behind the truck, which changes where both units land on a tight lot. Check porta potty permit requirements and dumpster permit requirements separately, since they're not the same approval, and a storage container rental oshawa job would face its own separate local review too.
Does OSHA require accessible or ADA units on a job site?
OSHA itself doesn't mandate ADA units, but public-facing events and many municipal contracts do, and it's worth building the requirement into your order regardless. ADA Standards 213.2 says that where single-user portable units are clustered, at least 5 percent must be accessible, with a minimum of one unit no matter how small the cluster. An accessible unit needs a 60 inch turning diameter under 304.3.1 and a 32 inch clear door opening under 404.2.3. A standard unit runs about 44 by 48 inches on the ground and stands roughly 92 inches tall, too tight for that turning radius, which is why ADA units are built wider. See ADA accessible porta potty for specs and ADA restroom requirements for the full standard. Weekly ADA rental sits in a lower bracket than the daily rate, so multi-week jobs in Greensboro or 9.3 miles northwest in Summerfield generally save by booking the longer term instead of renewing day rates.
| unit | day | week | month |
|---|---|---|---|
| standard | $100-$350 | $130-$500 | $125-$325 |
| ada | $200-$400 | $240-$400 | n/a |
| deluxe | $85-$1200 | $150-$290 | n/a |
Weekend rates run separately from this table. A standard unit for a Saturday event typically lands between $125 and $400, and ADA weekend rental runs $199 to $300. For office trailers or job trailers paired with toilets, a mobile office trailer rental or storage container rental handles tool and material storage on the same site, and monthly storage pricing is covered on the storage container rental cost page.
How many toilets does a 50-person crew need under OSHA?
At 50 workers you're past the 20-person threshold, so 1926.51(c) puts you in the "1 toilet seat and 1 urinal per 40 workers" band. That means 2 of each for a 50-person crew. Round up, always, since OSHA counts fractions as a full unit.
Does a general contractor or subcontractor have to provide the toilets?
Either party can supply them, but the general contractor is typically the one OSHA holds responsible for site-wide compliance. Subcontracts should spell out who orders and services units so nothing falls through on a Greensboro multi-trade job.
Can I use a residential septic system instead of portable toilets?
No, not for a construction crew moving around a site. A fixed septic system doesn't serve mobile crews the way a rented unit does. For an existing building's tank, see septic pumping service or how often to pump a septic tank.
Do event sites follow the same OSHA ratio as construction sites?
Not exactly. Events lean on ANSI/PSAI Z4.3 guidance and local expectations rather than the construction-specific 1926.51(c) table. Check event restroom rental or festival restroom rental for crowd-based sizing instead of worker counts.
What happens if a Greensboro site fails an OSHA sanitation inspection?
Expect a citation and a deadline to correct it, usually fast. Adding units or a wash station same-day is common; our emergency porta potty rental page covers rapid turnaround for exactly this situation.
Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.