A 4 stall restroom trailer runs 4 private stalls, sinks with running water, and climate control for events or job sites in Ontario that need more than a couple of standard units. Weekly rental on a trailer this size typically lands between 150 and 1,650 dollars depending on options, per our measured pricing data. It beats lining up eight portable toilets at the same location.
Four stalls comfortably serve a wedding, a corporate picnic, or a mid-size job site without a line forming every break. If you're running a construction crew, OSHA 1926.51(c) sets ratios by headcount, and a 4 stall unit often covers crews up to 40 or so depending on shift overlap. For events, we size differently; check our event restroom rental guidance or use the how many porta potties do I need breakdown before you commit. Weddings in Ontario often pair a 4 stall trailer with a luxury restroom trailer upgrade for the bridal party, but the standard 4 stall handles guest traffic fine on its own. If your headcount runs bigger, step up to an 8 stall restroom trailer instead of doubling up on 4 stall units. Compare it against a 2 stall restroom trailer if your guest list is under 75.
Pricing depends on rental length, hookups, and how far we haul it. Here's what the numbers look like across the durations we quote most:
| Duration | Low | Typical | High |
|---|---|---|---|
| Day | 175 | 800 | 2,500 |
| Week | 150 | 1,397 | 1,650 |
| Event rate | 2,499 | 3,500 | 3,899 |
Weekend rentals for a trailer this size run roughly 900 to 3,000 dollars depending on stall count and add-ons, so ask us to confirm where a 4 stall falls in that band. Full breakdown lives on our restroom trailer rental cost page, and if you want the general market comparison, our porta potty rental cost page covers standard units side by side. Delivery adds a separate fee, generally 100 to 500 dollars for a single day depending on distance; ask about the drive if you're near Eastvale, 6.8 miles south, or Jurupa Valley, 9.0 miles east, since travel time factors into the quote.
Yes, most 4 stall trailers run best on external power and a water source, though generator and fresh-water tank setups exist for remote sites. A 200 amp service isn't standard on this size trailer, but check with us about your specific unit's draw before you plan an outlet. If you're setting up on raw land or a lot without utilities, ask about a temporary power pole or a light tower rental to round out the site. ADA compliance matters too: ADA Standards section 403.5.1 calls for a 36 inch clear route to the unit, and section 213.2 requires at least one accessible unit when portable toilets are clustered, so if your 4 stall trailer isn't itself ADA-equipped, pair it with an ADA accessible porta potty. Ontario job sites near Upland, 8.3 miles northwest, or Montclair, 7.4 miles northwest, often run generator power when the trailer sits on a lot without existing service. We'll walk the site with you and figure out what's realistic.
Placement in the public right of way needs confirming with the city; we haven't verified a specific Ontario ordinance for trailer placement. If your site sits on private property, it's usually simpler. Check our porta potty permit requirements page, and we'll help you sort out what applies before delivery day.
Setup for a 4 stall trailer takes longer than a standard portable toilet because of the hookups involved. Plan for us to arrive with room to maneuver. See our porta potty placement guide for clearance basics before delivery day arrives in Ontario.
Yes, weekend rates exist separately from weekly pricing and typically run higher per day than a full week booked in advance. Ask us for the weekend figure specific to your event date, since it depends on trailer availability and delivery distance.
A 4 stall trailer is a full trailer with multiple private rooms; a deluxe flushable porta potty is a single-unit upgrade with a flush toilet and sink. Trailers suit bigger events; deluxe units suit smaller ones needing an upgrade from standard.
Yes, tanks need pumping and restocking on multi-week rentals, similar to the weekly service baseline described in ANSI/PSAI Z4.3 for portable units. We schedule service visits around your event or job timeline so stalls stay usable throughout.
Yes. Ontario Porta Pros delivers 4 stall restroom trailer across Ontario and the surrounding metro, with same-day and next-day drop-off available on most orders.
Pricing depends on the unit and how long you need it. See our cost breakdown and request a free quote for an exact figure.
Standard rentals include scheduled service — a pump-out, a clean, a restock and fresh deodorizer. Busy or hot-weather sites can be serviced more often.
Call now or request a free quote — clean units, on-time delivery, transparent pricing.
