What Do OSHA Rules Require for Construction Portable Toilets?
OSHA 1926.51(c) sets the ratio: one toilet for 20 or fewer workers on site, then one toilet seat and one urinal per 40 workers once you pass 20, and per 50 workers at 200 or more. That is the baseline every general contractor in Kennewick has to plan around before pouring foundations. Crews doing hand-labor work off site, like farm crews, fall under a different rule, OSHA 1928.110, which calls for one facility per 20 workers within a quarter mile walk. If your crew is applying paint, coatings, herbicides or insecticides, OSHA 1926.51(f)(1) also kicks in and requires washing facilities for that contaminant exposure specifically, not general handwashing. Our standard porta potty rental covers the base ratio, and we size up fast for bigger crews. Not sure how many units your site needs? Use our porta potty placement guide or check how many porta potties do I need before you order. We also break the full ruleset down on our OSHA portable toilet requirements page, which covers the same 1926.51(c) ratios in more depth for supers who need to document compliance for an inspector.
How Much Does Portable Toilet Rental Cost for Construction Sites?
A standard unit runs $100 to $350 a day, $130 to $500 a week, or $125 to $325 a month, with most Kennewick contractors landing in the middle of that band for multi-week jobs. Delivery adds $50 to $150 a week on top of the unit rate in most cases. Longer terms bring the per-day cost down, which is why monthly rentals make sense for anything running past a few weeks.
| duration | low | typical | high |
|---|---|---|---|
| day | $100 | $150 | $350 |
| week | $130 | $200 | $500 |
| month | $125 | $200 | $325 |
Need a deluxe flushable unit for supervisors or a trailer for a longer build? See deluxe flushable porta potty options or step up to a restroom trailer rental for crews over 50. Full cost breakdowns live on our porta potty rental cost, porta potty rental per day and monthly porta potty rental pages, and ADA units are priced separately on ADA accessible porta potty.
What Other Site Services Does a Construction Job Need?
Toilets are one piece. Most Kennewick job sites also need debris removal, a secured perimeter and clean water access before the first day of work. A roll-off dumpster rental handles demo debris and packaging waste, and OSHA 1926.25 requires scrap and debris to be cleared from work areas regularly, so a dumpster on site is not optional housekeeping, it is code. Sizing depends on the job: a 10 yard dumpster rental fits a small remodel, a 20 yard dumpster rental or 30 yard dumpster rental covers most new-build framing and roofing waste, and a 40 yard dumpster rental suits full teardowns. Check dumpster sizes and dimensions and dumpster weight limits before you order, and confirm what cannot go in a dumpster on our what cannot go in a dumpster page. A roll-off delivery truck needs about 60 feet of straight clearance behind it to place the box, so clear the drop zone before the truck arrives. Sites also often need a temporary fence rental or chain link temporary fence to secure tools and materials overnight, plus a handwashing station rental since 29 CFR 1910.141(d)(2) requires soap and towels or a hand-drying device at wash stations, and hand sanitizer alone does not meet that. Larger crews sometimes add a storage container rental or mobile office trailer rental for tools and site staff.
Do You Serve Sites Outside Kennewick?
Yes. We deliver across the Tri-Cities area, including Finley 7.6 miles east, West Pasco 8.5 miles north, Richland 11.4 miles northwest, West Richland 16.3 miles northwest, and Burbank 17.9 miles east. Every route runs through our Kennewick base, so lead times stay short even on multi-site jobs spread across those towns. If your job is outside Washington entirely, we get asked about construction portable toilet rental near Texas and construction portable toilet rental near California often enough to say plainly: we serve the Kennewick area and the towns above, not those states, so search for a provider licensed and staged near your actual job site. For anything nearby, see our service areas page or the direct city pages for Richland, West Richland, Finley, West Pasco and Burbank. For emergencies mid-job, our emergency porta potty rental and emergency septic service pages cover same-area rapid response.
How many porta potties does a 20-person crew need on a Kennewick job site?
Under OSHA 1926.51(c), a crew of 20 or fewer needs just one toilet facility. Once you cross 20 workers, the ratio steps up to one toilet seat and one urinal per 40 workers. Most supers order one extra unit anyway to cover breakdowns and keep the crew moving without a line.
Do portable toilets need to be ADA accessible on a construction site?
If units are clustered, ADA Standards 213.2 requires at least 5 percent to be accessible, and never fewer than one unit. Accessible units also need a 60 inch turning circle under 304.3.1 and a 32 inch clear door opening under 404.2.3. See ADA restroom requirements for the full list.
How often do construction porta potties get serviced?
ANSI/PSAI Z4.3 sets a baseline of one service visit per week for up to 10 users across a 40 hour week. Busy sites with more workers or full-day pours often need twice-weekly service to keep tanks from filling early. Ask about a servicing schedule when you book.
What size dumpster do I need alongside porta potties on a job site?
It depends on the trade. Framing and remodel debris usually fits a 20 or 30 yard box, while full demo jobs need a 40 yard unit. Check our dumpster sizes and dimensions page, and pair it with a construction dumpster rental quote sized to your scope.
Does a construction site need a handwashing station separate from the toilet?
Yes, if crews apply paints, coatings, herbicides or insecticides, OSHA 1926.51(f)(1) requires washing facilities for that exposure. General crews still benefit from a separate station since 29 CFR 1910.141(d)(2) requires soap and towels, which most toilet units do not include on their own.
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