How many units do you actually need?
Start with headcount, not guesswork. OSHA 1926.51(c) sets construction site ratios: 1 toilet for 20 workers or fewer, then 1 toilet seat and 1 urinal per 40 workers once you pass 20, and per 50 once you hit 200 or more. Farms and hand-labor crews fall under a different rule, 1928.110, which asks for one facility per 20 workers within a quarter mile walk. Events run on headcount and hours, not labor law, so a wedding or festival crew should size up rather than cut it close. Our porta potty rental checklist guide pairs with the how many porta potties do I need calculator for exact math. Still unsure which category fits your job? Compare a standard porta potty rental against a deluxe flushable porta potty before you call, and check OSHA portable toilet requirements if inspectors will walk the site.
What unit type fits the job?
Match the unit to the crowd. A standard unit runs a 60 to 70 gallon holding tank, stands about 92 inches tall, and covers roughly 44 by 48 inches on the ground, which is the workhorse for construction site services around Boulder. Weddings and corporate events usually step up to a restroom trailer rental, sized as a 2 stall restroom trailer, 4 stall restroom trailer, or 8 stall restroom trailer depending on guest count. Job sites with painting, coating, or pesticide work trigger OSHA 1926.51(f)(1), which requires washing facilities beyond a basic toilet, so pair units with a handwashing station rental or portable sink rental. Accessible units matter too: ADA Standards 213.2 requires at least 5 percent of clustered single-user toilets be accessible, and never fewer than one. Our ADA accessible porta potty meets ADA Standards 404.2.3 for door width and 304.3.1 for turning space.
Where should units go on site?
Placement decides whether the rental works or becomes a headache. Ground needs to be level, stable, and firm, consistent with ADA Standards 302.1 for surface stability, and delivery trucks need roughly 60 feet of straight clearance behind them if a roll-off or trailer is coming too. Keep units within reasonable walking distance of the work zone, away from slopes, and clear of electrical lines, especially near any 1926.404(b)(1)(ii) GFCI-protected temporary power. If the job sits near a public sidewalk or right of way in Boulder, confirm placement with the city before delivery, since permit rules were not verified for this page. Our porta potty placement guide walks through spacing, and the porta potty permit requirements page covers what to ask the city. Homeowners doing a renovation should check home renovation porta potty for driveway and yard placement tips specific to residential lots.
When should you schedule delivery and service?
Book early, then set a cleaning cadence. ANSI/PSAI Z4.3, the industry service standard, treats one visit per week as the baseline for up to 10 users across a 40 hour week, but busy sites or events need more frequent stops. Multi-week jobs typically move to monthly porta potty rental pricing, while short jobs work better on a porta potty rental per day basis. Check current porta potty rental cost figures before budgeting, since day rates, week rates, and month rates scale differently. See the pricing pattern below.
| unit | day | week | month |
|---|---|---|---|
| standard | $100-$350 | $130-$500 | $125-$325 |
| ada | $200-$400 | $240-$400 | - |
| deluxe | $85-$1200 | $150-$290 | - |
A weekend rental on a standard unit typically runs $125 to $400, priced separately from the day-week-month table above. If your event runs Friday to Sunday near Louisville, 9.4 miles southeast, or Lafayette, 10.1 miles east, ask about weekend rates directly. Storm damage, a burst tank, or a sudden event booking calls for our emergency porta potty rental line instead of standard scheduling.
Sites running dumpsters alongside toilets should also plan delivery clearance and service days together. A roll-off dumpster rental needs the same 60 foot straight clearance as a restroom trailer, and stacking both deliveries on one day saves a trip. Check dumpster rental cost and dumpster permit requirements while you are building the site plan, and review what cannot go in a dumpster before the crew starts filling it.
What if my job also needs fencing or storage?
Add temporary fencing and storage to the same checklist. A temporary fence rental or chain link temporary fence runs $30 to $75 a day and keeps foot traffic clear of the restroom units and any open trenches. A storage container rental or mobile office trailer rental handles tools and job files. Bundle these with your restroom order and Boulder Porta Pros can coordinate one delivery window instead of three separate trucks.
Do I need a permit for a porta potty in Boulder?
Maybe, depending on where the unit sits. Placement in the public right of way generally needs city confirmation, and permit rules for this page were not verified against a specific Boulder ordinance. Call the city planning or public works line before delivery day, and see our porta potty permit requirements page for the questions to ask.
How often do porta potties get cleaned?
Weekly service is the industry baseline under ANSI/PSAI Z4.3, covering up to 10 users over a 40 hour week. High-traffic events or larger crews need more frequent visits. See how often are porta potties cleaned for scheduling by job type.
Do porta potties need handwashing stations nearby?
Yes, when workers handle paints, coatings, herbicides, or insecticides, OSHA 1926.51(f)(1) requires washing facilities. General jobs still benefit from soap and towels under 29 CFR 1910.141(d)(2), since hand sanitizer alone does not satisfy that rule. Add a handwashing station rental to any painting or ag job.
What size unit works for a backyard wedding?
Most home weddings do fine with standard units plus one ADA-compliant unit for accessibility. Larger guest counts move up to a wedding restroom rental trailer. Check the event restroom rental page to match guest count to unit count before booking.
How far ahead should I book for a busy weekend?
Book 3 to 5 business days out for standard jobs, longer for event weekends near Erie, 13.9 miles east, or Broomfield, 15.5 miles southeast. Peak season and holiday weekends fill trucks fast, so early booking through request a quote locks in your date.
Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.