OSHA requires 1 toilet for 20 or fewer construction workers, scaling up as crew size grows, under 1926.51(c). For a Yakima job site, that means counting heads before you count units. Get it wrong and an inspector, or an angry foreman, will notice fast. Whether you call it cal osha portable toilet requirements construction or just osha portable toilet requirements construction, the numbers are the same for Yakima crews.
The rule is simple once you see the table. Under OSHA 1926.51(c)(1), crews of 20 workers or fewer need 1 toilet facility. From 20 up to 200 workers, it's 1 toilet seat and 1 urinal per 40 people. Past 200 workers, that ratio drops to 1 per 50. This applies to construction sites specifically, not warehouses or offices, which fall under 1910.141(c)(1)(i) instead. Most residential jobs around Yakima run under 20 people, so a single standard porta potty rental covers the requirement. Bigger commercial builds need real math, not guesswork. If you are unsure where your crew count lands, our how many porta potties do I need guide walks through the breakpoints. OSHA also requires potable water on site under 1926.51(a)(1), which is separate from toilet counts but often gets checked at the same time. A handwashing station rental or portable sink rental satisfies part of that. None of this is optional once workers are on the clock.
| crew size | toilets required |
|---|---|
| 1 to 20 | 1 |
| 21 to 200 | 1 per 40 workers |
| 200+ | 1 per 50 workers |
Handwashing rules get misquoted a lot, so here is the exact scope. OSHA 1926.51(f)(1) requires washing facilities specifically where crews apply paints, coatings, herbicides or insecticides, or work with other harmful contaminants. It's not a blanket handwashing mandate for every job site. If your crew is painting or spraying, plan for it. Under general industry rules, separate from construction, 29 CFR 1910.141(d)(2) requires soap and towels or a hand-drying device at washing stations; hand sanitizer alone does not satisfy that standard. Washington follows federal OSHA rather than running its own state plan like California's Cal OSHA, so Yakima contractors work from the federal construction standard, not a state-specific version. If your bid documents reference cal osha portable toilet requirements construction for a cross-border project, know that the numeric ratios in 1926.51(c) match what most jurisdictions enforce anyway, and the same logic applies if a client asks about portable toilet rental oshawa on a project outside Washington entirely. A handwashing requirements page breaks this down further if you're staging a paint crew or pesticide application job near Selah, 7.5 miles north of Yakima.
OSHA does not set a hard walking-distance number in the construction standard, and searches for osha portable toilet distance requirements usually turn up the same answer: there isn't a fixed footage figure, only ANSI/PSAI Z4.3's baseline service interval most operators build a placement plan around, one service visit per week for up to 10 users over a 40 hour week. Practically, that means placing units close enough that workers actually use them instead of skipping breaks. A porta potty placement guide covers ground clearance and access lanes. If you're renting a roll-off dumpster rental for the same site, remember it needs about 60 feet of straight clearance behind the delivery truck, so plan toilet placement around that footprint too. For ag operations near Ahtanum, 5.4 miles southwest of Yakima, a different rule applies: OSHA 1928.110 requires field sanitation facilities within a quarter mile walk of hand-labor employees, at one facility per 20 workers. That's tighter than the general construction rule, and worth knowing if your crew splits between orchard rows and a job trailer.
Yes, and the trigger is simple: cluster five or more single-user units, and at least 5 percent, never fewer than one, must be accessible under ADA Standards section 213.2. An ADA accessible porta potty needs a 60 inch turning circle inside per section 304.3.1, a 32 inch clear door opening per section 404.2.3, and a 36 inch clear route to reach it per section 403.5.1. Operable parts, door latches and lock hardware, must work with one hand and no more than 5 pounds of force under section 309.4. Floor surfaces need to be stable and slip resistant per section 302.1. For public events in Yakima, this isn't optional dressing, it's what separates a compliant site from a liability. Our ADA restroom requirements page has the full spec sheet. Standard units run $100 to $350 a day depending on service level, while ADA units run higher due to the added footprint and hardware. Job sites juggling several rentals at once, porta potties alongside a storage container rental, sometimes search it as storage container rental oshawa when comparing quotes from out-of-state crews, but the ADA math above holds no matter where the paperwork gets filed.
OSHA 1926.51(c)(1) is the controlling standard for construction sites. It sets toilet ratios by crew size, from 1 unit for 20 workers up to 1 per 50 workers at 200-plus. General industry workplaces, like warehouses, follow 1910.141(c)(1)(i) instead, so check which category your Yakima site falls under before ordering units.
A crew of 30 falls into the 21-200 bracket, which requires 1 toilet seat and 1 urinal per 40 workers under OSHA 1926.51(c)(1). That technically rounds to one unit, but most supervisors add a second for breaks and downtime. Check our how many porta potties do I need guide for crew-size math.
Only where contaminants are involved. OSHA 1926.51(f)(1) applies specifically to painting, coating, herbicide or insecticide work, not general labor. A separate potable water requirement under 1926.51(a)(1) applies broadly. If your crew handles chemicals, add a handwashing station rental to the order.
There's no hard OSHA footage number in the construction standard, but agricultural field sanitation under 1928.110 requires facilities within a quarter mile walk. For general construction, ANSI/PSAI Z4.3's weekly service interval for up to 10 users is the practical planning baseline most rental companies use.
Only when units are clustered. ADA Standards 213.2 requires at least 5 percent of clustered single-user units to be accessible, with a minimum of one. A standalone unit on a small job site doesn't trigger this rule, but any event or larger crew setup with multiple units usually does.
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