How many people can a 4 stall restroom trailer handle?
Four stalls comfortably cover a mid-size wedding, a weekend festival, or a construction crew working a longer stretch without daily servicing. St. Petersburg Porta Pros builds these out with separate stalls so lines move faster than they would at a single portable restroom rental setup. For context, ANSI/PSAI Z4.3 sets a baseline service interval of once weekly for up to 10 users over a 40 hour week, which is why crews above that headcount usually step up from standard porta potty rental units to a trailer with more capacity. If your event is closer to 150 guests over a few hours, check our how many porta potties do i need guide before locking in a stall count. For anything over four stalls, look at the 8 stall restroom trailer option instead.
What does a 4 stall restroom trailer cost in St. Petersburg?
| duration | low | typical | high |
|---|---|---|---|
| day | 175 | 800 | 2500 |
| weekend | 900 | 2000 | 3000 |
| week | 150 | 1397 | 1650 |
| event | 2499 | 3500 | 3899 |
Pricing swings on generator needs, water hookup access, and how far the delivery truck has to travel into St. Petersburg or out toward Gulfport, 5.2 miles west, or Bear Creek, 6.6 miles west. A roll-off style delivery truck needs about 60 feet of straight clearance behind it, and the same clearance rule applies when our trailers back into a site, so tight downtown St. Petersburg lots sometimes need a site visit first. Compare this against a restroom trailer rental cost breakdown, or check the 2 stall restroom trailer if your headcount is smaller. Multi-day construction jobs often do better on the week rate than booking single days back to back, since the per-day cost drops once you commit past a weekend.
Is a 4 stall restroom trailer ADA accessible?
Not automatically. Standard 4 stall trailers are built for stalls sized around 44 by 48 inches on the ground, close to a standard portable unit's footprint, and most do not meet accessibility standards on their own. Where units are clustered for an event, ADA Standards section 213.2 requires that at least 5 percent be accessible, with a minimum of one unit regardless of total count. That means a wedding or festival renting a 4 stall trailer from St. Petersburg Porta Pros should also add a dedicated ADA accessible porta potty unit alongside it. Accessible units need a 60 inch turning circle per ADA Standards section 304.3.1 and a 32 inch clear door opening per section 404.2.3, specs a standard trailer stall usually will not meet. If you are unsure what your event needs, our ADA restroom requirements page walks through the details, and event restroom rental planning covers layout alongside fencing or temporary fence rental for crowd flow.
Construction sites have their own baseline under OSHA 1926.51(c): one toilet facility per 20 workers or fewer, scaling up from there. A 4 stall trailer often satisfies that ratio for crews between 40 and 80 workers, which is why general contractors managing construction site services in St. Petersburg lean on trailers over scattered single units. Pair the trailer with a handwashing station rental to round out crew facilities, especially if the OSHA 1926.51(f)(1) washing requirement applies because the crew handles paints, coatings, or similar contaminants.
How far in advance should I book a 4 stall restroom trailer?
Book two to four weeks out for weddings and festivals, longer during peak event season. Construction rentals can often move faster since they run on standing accounts. Contact St. Petersburg Porta Pros or submit a request a quote form early to lock in your delivery window.
Does the trailer need a water and power hookup?
Most 4 stall trailers need both a water source and standard power access on site. If neither is available, generator and water tank add-ons are possible but affect the quote. Ask about this when you call, since it changes delivery logistics.
Can I rent a 4 stall trailer for a single day event?
Yes. Day rentals exist mainly for smaller gatherings or quick turnarounds, though weekend and week rates often make more sense for anything multi-day. See the porta potty rental cost page for how daily and weekly pricing compares across unit types.
What is the difference between this and a luxury trailer?
A 4 stall unit is built for function and volume. A luxury restroom trailer adds finishes like upgraded fixtures and climate control, usually for higher-end weddings. Both come from the same restroom trailer rental fleet.
Do you deliver outside St. Petersburg proper?
Yes, including Lealman, 6.6 miles northwest, and Pinellas Park, 10.1 miles northwest. Check service areas for the full list of towns we reach from our St. Petersburg base.

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