How many units do you need?
Start with worker or guest count, then check it against OSHA 1926.51(c): construction sites need 1 toilet for 20 workers or fewer, and 1 toilet seat plus 1 urinal per 40 workers once you pass that number. Events run on a looser rule of thumb, but the math still starts with a headcount. If you are staffing a farm crew instead of a job site, note that OSHA 1928.110 sets field sanitation at one facility per 20 hand-labor employees, within a quarter mile walk. For weddings, festivals, or a county fair crowd in Gilbert, guest flow matters more than a strict ratio. Use the porta potty calculator guide before you call. Undercounting is the single most common mistake we see, and it is the one that gets fixed the hardest, mid-event, with a truck stuck in traffic.
What type of unit fits the job?
A standard portable toilet covers most construction and casual event needs, and it runs on a 60 to 70 gallon holding tank inside a unit about 44 by 48 inches on the ground and 92 inches tall. If guests expect more, step up to a deluxe flushable unit or a full restroom trailer, sized from a 2-stall up to an 8-stall layout. Every cluster of single-user units also needs an accessible option: ADA Standards 213.2 requires at least 5 percent of clustered units be accessible, and never fewer than one. That unit needs a 60 inch turning circle under ADA 304.3.1 and a 36 inch clear route per ADA 403.5.1. If the job involves painting, coatings, herbicides, or insecticides, OSHA 1926.51(f)(1) requires washing facilities on top of the toilets, not instead of them.
| unit | day | week | month |
|---|---|---|---|
| standard | 100-350 | 130-500 | 125-325 |
| ada | 200-400 | 120-240 | - |
| deluxe | 85-1200 | 150-290 | - |
Weekend rates run separately: a standard unit weekend typically lands near 250, and an ADA weekend unit near 240. See the full porta potty rental cost breakdown or the per-day pricing page for more detail, and check monthly rental rates if the job runs long.
Where should the units go?
Placement drives half the complaints we get on a Gilbert job site. The ground has to be stable, firm, and slip resistant under ADA 302.1, and every accessible unit needs a 32 inch clear door opening per ADA 404.2.3. Delivery trucks need about 60 feet of straight clearance behind the vehicle to set a roll-off or a restroom trailer, so measure your driveway or lot access before delivery day, not after the truck arrives. Keep units off soft turf after rain, out of low spots that pool water, and within reach of foot traffic without blocking a fire lane. If you are working a jobsite that also needs temporary fencing or light towers, plan the whole layout together so nothing gets boxed in. Whether the unit sits in the public right of way still needs confirming with the City of Gilbert directly; we do not guess at that one.
When does it need to be serviced?
ANSI/PSAI Z4.3 sets the baseline service interval at once per week for up to 10 users over a 40 hour week, but heavier event traffic needs more frequent visits. A wedding or festival crowd in Gilbert can blow through that baseline in a single afternoon, so talk servicing frequency into your quote up front rather than after units start filling. If you are running a grease trap alongside a food vendor setup, note it gets pumped once fats, oils, grease, and solids reach 25 percent of the liquid depth, per our grease trap pumping guidelines. Handwashing stations need soap and towels or a hand-drying device under 29 CFR 1910.141(d)(2); hand sanitizer alone does not satisfy that standard, so do not swap one for the other to save a delivery fee.
Do you need extras beyond the toilet?
Most Gilbert jobs need more than a toilet. Construction sites pair porta potties with a roll-off dumpster, sized from a 10 yard up to a 40 yard box, and often a storage container or mobile office trailer for tools and paperwork. Septic-dependent properties should check how often a tank needs pumping: a typical residential tank goes 3 to 5 years between pumpings, driven by tank size and household size. Events near Mesa, 8.1 miles north of Gilbert, or Queen Creek, 10.9 miles southeast, use the same checklist; only drive time to the yard changes. If your event sits closer to Sun Lakes, 14.3 miles southwest, factor that into delivery fee timing since delivery fees run 50 to 540 depending on day, week, or weekend terms.
What size porta potty do I need for a small backyard job?
A standard unit works for most home projects: about 44 by 48 inches on the ground, 92 inches tall, with a 60 to 70 gallon tank. Check the home renovation porta potty page for placement tips specific to tight residential lots.
How far ahead should I book for a Gilbert event?
Book as soon as headcount is firm, especially for weekend events, since trailer and deluxe unit availability tightens fast. Weekend trailer rates run higher than weekday rates, so locking dates early protects both availability and price.
Do I need an ADA unit if I only have a few units total?
Yes. ADA Standards 213.2 requires at least one accessible unit in any cluster, even a small one, with no exception for low counts.
Can I rent just a handwashing station without toilets?
Yes, standalone handwashing stations are common at food events and job sites. See handwashing station rental or portable sink rental for standalone options.
What if my job needs sanitation fast, same day?
Call the emergency porta potty rental line. Same-day delivery depends on truck routing that day, so the earlier you call, the better your placement window.
Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.