How Big Is a 4 Stall Restroom Trailer?
Think of it as four private rooms on wheels, each with its own door and lock, built to handle steady foot traffic without a line forming outside. It sits between the smaller 2 stall restroom trailer and the larger 8 stall restroom trailer in our lineup, and most customers land here once a guest count passes 75 or so. Garden Grove Porta Pros delivers these units for weddings, church events, and multi-day construction jobs where a standard portable toilet rental just will not cut it. If you want flushing fixtures and running water instead of a holding-tank unit, this sits closer to our deluxe flushable porta potty line than a basic standard porta potty rental. Delivery crews need clearance to back the trailer into place, similar to the roughly 60 feet of straight clearance a roll-off truck needs for a roll-off dumpster rental, so tight driveways in older Garden Grove neighborhoods sometimes call for a site visit first. We also handle the leveling and hookup, which matters more with a trailer than with a simple porta john rental.
What Does a 4 Stall Restroom Trailer Cost?
Pricing depends heavily on how long you need it and whether it is a single-day event or a weeklong site rental.
| Duration | Typical Range |
|---|---|
| Day | $175 to $2,500 |
| Weekend | $900 to $3,000 |
| Week | $150 to $1,650 |
| Event package | $2,499 to $3,899 |
Weekly rentals bundled for construction projects tend to sit at the lower end of that band, while single-day luxury event bookings push toward the top. For a broader comparison across trailer styles, see our restroom trailer rental cost breakdown, or check porta potty rental cost if a standard unit might actually fit your budget better. Delivery is billed separately and depends on distance from our Garden Grove staging area. If your event is closer to Stanton, about 3.8 miles northwest, or Cypress, 7.3 miles northwest, mention that when you request a quote so we can quote delivery accurately.
Is a 4 Stall Restroom Trailer ADA Compliant?
Not automatically. Most 4 stall trailers are built for standard access, and if you need a wheelchair-accessible unit onsite, ADA Standards section 213.2 requires that at least one accessible unit be provided wherever units are clustered together, with a minimum of one regardless of the total count. That usually means pairing your trailer with a dedicated ADA accessible porta potty rather than assuming the trailer itself satisfies the requirement. Accessible units also need a 60 inch turning circle per ADA Standards section 304.3.1 and a clear door opening of at least 32 inches under section 404.2.3, specs that a standard trailer stall does not always meet. For construction sites in Garden Grove, general toilet counts still follow OSHA 1926.51(c), which sets ratios by crew size regardless of trailer style. Our ADA restroom requirements guide covers this in more detail if you are planning a public event rather than a private one.
Handwashing matters too. If your crew works with paints, coatings, or similar contaminants, OSHA 1926.51(f)(1) requires washing facilities specific to that exposure, separate from whatever the trailer provides. A handwashing station rental or portable sink rental covers that gap cheaply. For events without that exposure, general sanitation under OSHA 1926.51(c) is the relevant standard, and most Garden Grove event planners just want confirmation the unit count matches guest headcount, which our how many porta potties do i need guide walks through.
How many people can a 4 stall restroom trailer handle?
Around 100 guests comfortably over a several-hour event, less if it is an all-day festival with heavy drink service. For larger crowds, look at the 8 stall restroom trailer or pair the trailer with extra standard porta potty rental units nearby.
Does the trailer need a power hookup?
Most units run on standard household power or a generator we can provide. Confirm this when booking, especially for remote sites without access, similar to how a temporary power pole gets arranged for construction jobs.
Can I rent a 4 stall trailer for a construction site?
Yes, and weekly rates work best for multi-day jobs. Pair it with construction site services like a temporary fence rental or roll-off dumpster rental to cover the whole site at once.
How far in advance should I book?
Two to three weeks is safest for weddings and festivals, since trailers book up faster than standard units. Check event restroom rental for seasonal timing specific to Garden Grove events.
What is the difference between this and a luxury trailer?
A 4 stall trailer is functional and clean; a luxury restroom trailer adds finishes like climate control and upgraded fixtures. Both fall under our restroom trailer rental category, priced differently based on features.

Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.