How Many Porta Potties Do I Need for OSHA?
Count your crew, then divide. OSHA 1926.51(c)(1) sets the baseline at 1 toilet facility per 20 workers on a construction jobsite, and that ratio holds until you cross 20 workers, when a second fixture with a urinal gets added for every 40 more. At 200 or more workers, the ratio changes again to 1 seat and 1 urinal per 50. If you are staffing a job in Auburn with a crew of 15, one standard porta potty rental covers you. Crews of 25 to 30 need two units, and larger builds should run the math against our how many porta potties do I need guide before ordering. Note that 1926.51(c) governs construction. General industry workplaces fall under 1910.141(c)(1)(i) instead, which uses a different employee-count table. Farm labor operations are different again: OSHA 1928.110 sets field sanitation at one facility per 20 hand-labor employees, reachable within a quarter mile walk, which matters for farm and agricultural restrooms around Auburn.
What Are the OSHA Portable Toilet Distance Requirements?
OSHA does not publish one blanket distance rule for construction toilets, but the field sanitation standard for agriculture, 1928.110, does: a quarter mile walk, max. For general construction sites, placement is governed more by access and safety than a fixed number. Units need to sit on stable, level ground, and the path to them has to stay clear of trip hazards under the general housekeeping rule at 1926.25. If your Auburn site also needs an ADA-accessible unit, ADA Standards 213.2 requires that at least 5 percent of a cluster of single-user toilets be accessible, with a minimum of one no matter how small the cluster. Our porta potty placement guide walks through grading, clearance and service truck access, which matters most on tight urban lots. If you are working a job near the Green River or on a slope, drainage and stability change where a unit can actually sit, so plan placement before delivery day.
Does OSHA Require Handwashing Stations on Construction Sites?
Only in specific cases. 1926.51(f)(1) requires washing facilities where workers apply paints, coatings, herbicides or insecticides, or work around similar contaminants. It is not a blanket rule for every jobsite. Separately, 29 CFR 1910.141(d)(2) requires soap and towels or a hand-drying device wherever washing facilities are provided. Hand sanitizer alone does not satisfy that standard. Auburn crews doing exterior painting or applying weed treatment on a commercial lot should pair a handwashing station rental or portable sink rental with their toilet order rather than relying on sanitizer stations alone. General potable water is also required on every jobsite under 1926.51(a)(1), regardless of what kind of work is happening. If you're unsure which rule applies to your scope, our handwashing requirements page breaks down the difference between the contaminant-specific rule and the general water requirement.
Is Cal OSHA Different From Federal OSHA for Portable Toilets?
Washington is not California, so cal osha portable toilet requirements construction rules do not apply to jobs in Auburn. Washington operates its own state plan, but the ratios contractors ask about most, one toilet per 20 workers, stepping to one toilet and one urinal per 40, come from the federal standard at 1926.51(c)(1) and are the numbers to plan around here. Confusion happens because a lot of national guidance gets written under cal osha portable toilet requirements for California contractors first, and the terms get repeated without the state label. If you are bidding a job that also has crews working in another state, check that state's own plan separately. Our OSHA portable toilet requirements resource is written for Washington jobsites specifically, and pairs well with the construction site services page for full-site planning: toilets, temporary fencing, and roll-off dumpsters ordered together instead of piecemeal.
Pricing at a Glance
| unit | day | week | month |
|---|---|---|---|
| standard | $100-$350 | $130-$500 | $125-$325 |
| ada | $200-$400 | $200-$240 | n/a |
| deluxe | $85-$1,200 | $150-$290 | n/a |
Delivery runs $100 to $500 for a single day depending on distance and access, per our measured pricing data. Full breakdowns live on porta potty rental cost and porta potty rental per day, with monthly job-site rates on our monthly porta potty rental page. Auburn sits close enough to several neighboring cities, Sumner 8.9 miles south, Covington 9.2 miles northeast, Bonney Lake 10.0 miles south, that delivery routing rarely adds much to the quote.
Frequently asked questions
How many porta potties do I need for a 20-person crew?
One unit satisfies OSHA 1926.51(c)(1) at exactly 20 workers, since the ratio is 1 per 20 or fewer. Once you add a 21st worker, you're required to step up to two fixtures with a urinal. Order slightly ahead of headcount growth so you're not scrambling mid-job.
Do I need an ADA-accessible unit on my jobsite?
If you're clustering multiple single-user toilets, yes, at least one has to be accessible per ADA Standards 213.2, regardless of cluster size. Public-facing events and job sites with public access trigger this more often than closed construction sites. Check our ADA accessible porta potty page for specs.
What happens if my Auburn site fails an OSHA sanitation check?
Inspectors look for adequate toilet counts under 1926.51(c), potable water under 1926.51(a)(1), and clean, accessible units. Fines vary by violation type and are not something we quote. The fix is usually fast: add units, add water, or relocate a blocked unit before the next visit.
Can I rent a storage container alongside my toilet order?
Yes. Auburn contractors bundle a storage container rental or 20ft storage container with their toilet and dumpster order to keep tools and materials secured on one site visit instead of three separate deliveries, and crews searching portable toilet rental oshawa or storage container rental oshawa while comparing out-of-area vendors should confirm they are booking the Auburn, WA service area.
How often do OSHA-compliant units get serviced?
The industry baseline under ANSI/PSAI Z4.3 is one service visit per week for up to 10 users across a 40 hour work week. Busier sites or larger crews need more frequent pumping. See our how often are porta potties cleaned page for scheduling detail.
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