A 4 stall restroom trailer gives you four private stalls under one roof, running water at each sink, and enough capacity for crews or guests in the 100 to 300 person range depending on the event length. Yakima Porta Pros stocks these for weddings, jobsites, and weekend festivals across the valley.
Four separate stalls, each with its own door and lock, sit on either side of a center aisle. Every stall has a sink with running water, which matters because 29 CFR 1910.141(d)(2) requires soap and a way to dry hands, not just sanitizer. Interior lighting and climate control keep the unit usable through most of a Yakima summer or a cold snap. Some units add a small counter and mirror per stall. If you need something plainer for a short jobsite run, the standard porta potty rental or the flush-equipped deluxe flushable porta potty may cover it for less. For a smaller footprint event, look at the 2 stall restroom trailer; for something bigger, the 8 stall restroom trailer is the next step up. Every trailer we place still needs to be reachable, and delivery crews plan for roughly 60 feet of straight clearance behind the truck to back a large trailer into place, similar to the room needed for roll-off dumpster rental drop-offs.
Pricing runs by the day, week, or as a flat event rate, and the gap between short and long rentals is real, not a rounding error. A weekend booking runs higher than a single day because delivery, pump-out, and pickup all happen inside a tighter window. See the full breakdown on restroom trailer rental cost or start with the general porta potty rental cost page for context on smaller units.
| duration | typical range |
|---|---|
| day | $175 - $2,500 |
| week | $150 - $1,650 |
| event flat rate | $2,499 - $3,899 |
Ask about delivery separately; it is not folded into the trailer rate. For ongoing work that needs a unit parked for a month or more, compare against monthly porta potty rental pricing before you commit to a trailer term.
If you are clustering restroom units for a public event, ADA Standards section 213.2 requires that at least 5 percent be accessible, with a minimum of one unit no matter how small the cluster is. A 4 stall trailer on its own does not automatically satisfy that; you may need a standalone ADA accessible porta potty alongside it. Accessible units also need a 60 inch turning circle under ADA Standards 304.3.1 and a 32 inch clear door opening per ADA Standards 404.2.3, specs a standard trailer stall usually will not meet. If you are running a wedding, county fair booth, or golf tournament in Yakima, check the ADA restroom requirements guide before you finalize your order, and pair it with our event restroom rental planning notes.
It depends on event length and crowd flow, not just headcount. ANSI/PSAI Z4.3 sets a baseline of one servicing interval per week for up to 10 users over a standard 40 hour week, which is a starting point for jobsite math, not weekend events. For a jobsite crew, check how many porta potties do i need for a fuller breakdown.
Yes, and OSHA 1926.51(c)(1) sets the ratio: one toilet facility for 20 or fewer workers, scaling up from there. Many Yakima contractors pair a trailer with standard units for larger crews. See construction site services and osha portable toilet requirements for the full ratio table.
It runs best with a nearby water source and standard power, though many units carry onboard tanks for short events. OSHA 1926.51(a)(1) requires an adequate potable water supply on site regardless of hookup type. Ask about a temporary power pole if your site has no power access.
Book as early as you can, especially for peak wedding season weekends when trailers move fast. Delivery routes reach Selah 7.5 miles north and Terrace Heights 6.7 miles east without issue. Check wedding restroom rental for seasonal booking notes.
Stall count is the main difference, but larger trailers also need more clearance and often a bigger power draw. If your Yakima guest count tops 300, step up to the 8 stall restroom trailer rather than doubling up two 4 stall units.
Yes. Yakima Porta Pros delivers 4 stall restroom trailer across Yakima 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.
