What Is a 4 Stall Restroom Trailer?
It is a towable unit with four separate stalls, built for events and job sites that need more privacy than a bank of single units. Unlike a portable toilet rental, a trailer usually includes running water and interior lighting, which matters for evening events near San Bernardino. San Bernardino Porta Pros sets these up for weddings, company picnics, and crews working extended shifts. If four stalls is more than the guest count needs, look at the 2 stall restroom trailer; if it's a large festival, the 8 stall restroom trailer handles bigger crowds. For a step up in finish, ask about the luxury restroom trailer or the deluxe flushable porta potty line. Every quote from San Bernardino Porta Pros factors in drive time, hookups, and how long the unit stays on site, so pricing on the restroom trailer rental cost page varies by job.
How Much Does a 4 Stall Restroom Trailer Cost?
Trailer pricing runs by the day, the week, or the event, and the gap between those durations is real. A single-day rate sits between 175 and 2,500 dollars, a week runs 150 to 1,650 dollars, and multi-day events typically land between 2,499 and 3,899 dollars. Compare that with a restroom trailer rental quoted for a wedding versus a construction job; a wedding near Highland, 9.7 miles east of San Bernardino, often books the event rate, while a job site near Colton, 8.9 miles south, is more likely billed daily or weekly.
| duration | low | typical | high |
|---|---|---|---|
| day | 175 | 800 | 2500 |
| week | 150 | 1397 | 1650 |
| event | 2499 | 3500 | 3899 |
Delivery adds a separate fee, generally 100 to 500 dollars for a single day or 50 to 150 dollars if billed weekly. Full detail on delivery and setup lives on the porta potty rental cost page. For exact numbers tied to your date, request a quote.
Does a 4 Stall Restroom Trailer Meet ADA and OSHA Rules?
Not automatically. A standard 4 stall trailer is not the same as an accessible unit. If guests or workers need accessible access, ADA Standards section 213.2 requires that where portable toilet units are clustered, at least 5 percent, and never fewer than one, must be accessible; pair the trailer with an ADA accessible porta potty to cover that. ADA Standards section 404.2.3 sets a minimum 32 inch clear door opening, and section 403.5.1 calls for a 36 inch clear route to the unit, both worth checking before setup on uneven ground. On a construction site, OSHA 1926.51(c)(1) still governs toilet counts per worker regardless of trailer type, so a crew of 25 needs more than one facility. San Bernardino Porta Pros can walk the site and confirm placement meets both standards. For broader planning, see ADA restroom requirements and OSHA portable toilet requirements.
How many people can a 4 stall restroom trailer serve?
It depends on event length and traffic, not just headcount. ANSI/PSAI Z4.3 sets a baseline of one service visit per week for up to 10 users over a 40 hour week, but a wedding with 150 guests over four hours needs different math. Use the how many porta potties do I need guide to size it correctly.
Do I need a permit to place a restroom trailer in San Bernardino?
Maybe, depending on where it sits. Placement in the public right of way or on a public easement needs confirming with the City of San Bernardino directly; we do not guess at local ordinance numbers. Check the porta potty permit requirements page before delivery day.
What's included with a 4 stall restroom trailer rental?
Most rentals include interior lighting, running water at the sink, and setup by San Bernardino Porta Pros staff. Handwashing add-ons like a handwashing station rental or portable sink rental are available separately for job sites that need extra stations.
Can a restroom trailer be used for a construction site?
Yes, and many crews prefer it for longer jobs. Pair it with construction site services or a roll-off dumpster rental for a fuller site setup, especially on multi-week projects.
How far will San Bernardino Porta Pros deliver a trailer?
Delivery reaches towns near San Bernardino including Colton, Loma Linda at 10.8 miles south, and Yucaipa at 21.8 miles southeast. Check the service areas page or contact us to confirm your address.
Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.