Under OSHA portable toilet requirements construction crews follow, the rule is 1 toilet for every 20 workers on a construction site, per 1926.51(c). That number climbs as your crew does. Rock Hill contractors get this wrong constantly by counting heads on day one and never adjusting. Rock Hill Porta Pros sets units based on peak crew size, not the average.
Cal OSHA portable toilet requirements construction crews in California must meet differ from the federal rule, but South Carolina follows OSHA directly, so cal osha portable toilet requirements do not apply on a Rock Hill site.
Start with the ratio: 1926.51(c) sets 1 toilet facility per 20 workers or fewer. Once you cross 20 workers, OSHA calls for 1 toilet seat and 1 urinal per 40 workers, and that shifts again to 1 per 50 once headcount hits 200. A 35-person framing crew in Rock Hill needs 2 facilities, not 1, because the math resets at the 20-worker line. Get the breakdown at how many porta potties do i need or run the ratio yourself with our construction site services crew. Water matters too: 1926.51(a)(1) requires an adequate supply of potable water at every place of employment, which is why most job sites pair a standard porta potty rental with a handwashing station rental rather than treating them as separate line items. If your crew works near Fort Mill, 8.3 miles northeast, or Tega Cay, 12.9 miles north, the same ratio applies. OSHA does not soften the count based on zip code, and OSHA portable toilet distance requirements for agriculture, covered below, are stricter than anything written for a general construction crew.
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 rule for every job site, and a lot of contractors misquote it that way. If your crew is only using porta potties for waste, general sanitation falls under 1926.51(c) instead. Separately, 29 CFR 1910.141(d)(2) requires washing facilities to include soap and towels or a hand drying device; hand sanitizer alone does not meet it. That standard governs general industry workplaces, not construction sites, so know which one applies before you order equipment. A portable sink rental with soap and paper towel dispensing satisfies the stricter reading. Painting crews and pesticide applicators around Rock Hill should treat 1926.51(f)(1) as a trigger for adding a wash station, not an optional extra. Check our handwashing requirements page for the full breakdown, or look at hand sanitizer station rental if sanitizer is genuinely all your situation calls for.
Yes. Agricultural hand-labor operations fall under OSHA 1928.110, not 1926.51(c). Field sanitation rules require potable water, toilets and handwashing facilities at a ratio of 1 per 20 employees, and those facilities need to sit within a quarter mile walk of where people are working. That quarter-mile distance is the detail most farm operators miss, because it is stricter about proximity than the general construction standard. A crew picking or packing produce outside Rock Hill needs units placed close to the fields, not staged at a single farm entrance a half mile off. See farm and agricultural restrooms for placement guidance built around that rule. If you are running a mixed operation with both fieldwork and general construction on the same property, apply whichever standard covers each crew separately rather than picking one for the whole site. Our porta potty placement guide covers how to space units so both compliance requirements are met without over-ordering equipment you do not need.
Yes, when units are clustered. ADA Standards section 213.2 requires at least 5 percent of clustered single-user portable toilets to be accessible, with a minimum of one unit regardless of cluster size. That accessible unit needs a 32 inch clear door opening per section 404.2.3, a 36 inch clear route per section 403.5.1, and a 60 inch turning circle inside per section 304.3.1. Floor surfaces have to be stable and slip resistant under section 302.1. Most job sites in Rock Hill treat this as a public-event issue and skip it on construction sites, but if the public has any access to the site, or if it is a multi-contractor job with a large combined crew, the ratio still applies. Our ada accessible porta potty page covers unit specs, and ada restroom requirements walks through when the standard triggers versus when it does not. Skipping the accessible unit on a site that needs one is one of the more common compliance gaps we see.
| unit | duration | typical price |
|---|---|---|
| standard | day | $150 |
| standard | week | $200 |
| standard | month | $200 |
| ada | day | $230 |
| ada | week | $185 |
Prices vary by site duration and delivery distance; see porta potty rental cost for the full range and monthly porta potty rental if your job runs long.
OSHA does not publish a fixed distance for construction sites the way 1928.110 does for agriculture. The practical standard most crews follow is placing units close enough that workers actually use them instead of skipping the walk. See porta potty placement guide for spacing that also keeps service trucks able to reach each unit.
At 50 workers you are past the 20-worker threshold, so 1926.51(c) puts you in the 1-per-40 tier, meaning 2 toilet seats and 2 urinals minimum. Many contractors round up rather than sit exactly at the line. Check osha portable toilet requirements math against your actual peak headcount, not your average crew size.
South Carolina follows federal OSHA standards, not Cal/OSHA, so the 1926.51(c) ratios apply here rather than California's state-specific rules. Cal osha portable toilet requirements construction crews use in California carry different spacing and count language, and none of that governs a Rock Hill job. If you are bidding a job that references Cal/OSHA language, confirm which state's rules actually govern your Rock Hill site before ordering equipment. Some crews search portable toilet rental oshawa or storage container rental oshawa while comparing out-of-state vendor listings, but Oshawa is a different city entirely and its rules have no bearing on a South Carolina site.
Yes. 1926.51(a)(1) requires an adequate supply of potable water at all places of employment, separate from the toilet count itself. Most crews pair this with a handwashing station rental so both requirements are covered by one delivery instead of two separate vendor calls.
Inspectors can cite the site, and it can stall work until the count is corrected. Request a quote through request a quote with your peak crew number, not your starting number, so Rock Hill Porta Pros can size the order correctly the first time.
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