What Comes Inside a 4 Stall Restroom Trailer?
Four private stalls means four separate flush toilets, sinks with running water, and interior lighting, split so foot traffic never bottlenecks at one door. Compare that to a standard porta potty rental, which handles one person at a time and skips the sink altogether. Most Berkeley clients pair a 4 stall unit with a handwashing station rental anyway, since guests expect soap and towels, not just water. Per 29 CFR 1910.141(d)(2), washing facilities need soap and towels or a hand-drying device; hand sanitizer alone doesn't satisfy that standard, which matters if your event coordinator is checking boxes. If you want something closer to a bathroom at home, look at the deluxe flushable porta potty or step up to the luxury restroom trailer line. Smaller footprint jobs might only need a 2 stall restroom trailer, while larger festivals often move to the 8 stall restroom trailer. For accessibility, ADA Standards section 213.2 requires at least one accessible unit in any cluster, even a small one, so ask about pairing an ADA accessible porta potty alongside your trailer.
How Much Space Does a 4 Stall Restroom Trailer Need?
Delivery crews need clear, level ground and enough room to maneuver the trailer into place, plus space behind it for hookup. A roll-off delivery for comparison needs about 60 feet of straight clearance behind the truck, and restroom trailers aren't far off that mark once you account for turning radius on a residential Berkeley street. Placement in the public right of way needs confirming with the city before delivery day; we can talk through your driveway or lot layout during a request a quote call. If your site is tight, a smaller footprint like the 2 stall restroom trailer or a cluster of standard porta potty rental units might fit better than one long trailer. For events near Albany, 2.2 miles northwest of Berkeley, or Emeryville, 3.1 miles south, our delivery routes already cover that stretch regularly, so distance rarely changes your quote much.
When Should I Book a 4 Stall Restroom Trailer?
Book as early as you can once your date and guest count are locked in, especially for weekends, since trailers move fast during Berkeley's event season. A wedding restroom rental or festival restroom rental booked a week or two out gives us room to confirm hookup needs and run the unit through a walk-through before drop-off. Construction crews planning longer jobs should check construction site services for how trailers pair with fencing and dumpsters on an active site. If your plans change last minute, our emergency porta potty rental line can sometimes still work, though a trailer with plumbing hookups needs more lead time than a drop-and-go unit. For budget planning across formats, the restroom trailer rental cost page breaks down day, weekend, and week pricing side by side.
| duration | low | typical | high |
|---|---|---|---|
| day | $175 | $800 | $2,500 |
| week | $150 | $1,397 | $1,650 |
| weekend | $900 | $2,000 | $3,000 |
| event | $2,499 | $3,500 | $3,899 |
How many people can a 4 stall restroom trailer handle?
There's no fixed OSHA number for trailers specifically, but ANSI/PSAI Z4.3 uses one service visit per week for up to 10 users over a 40 hour week as a baseline for planning service intervals. For larger crowds, our how many porta potties do i need guide walks through headcount math.
Does a 4 stall restroom trailer need a water hookup?
Yes, most units run on a fresh water connection or an onboard tank, plus power for lighting and pumps. If your site lacks hookups, ask about a temporary power pole or generator option when you book.
Can I rent a 4 stall restroom trailer for a single day?
Yes, day rentals exist for smaller events or short jobs, though weekly and weekend rates often make more sense for anything spanning Friday through Sunday. Check the porta potty rental per day page for comparison pricing on smaller units.
Is a 4 stall restroom trailer ADA accessible?
Not automatically. Most 4 stall trailers are standard-entry units, so if you need accessible fixtures, pair your order with an ADA restroom requirements check or add a dedicated ADA unit under ADA Standards section 404.2.3, which sets minimum door width at 32 inches.
What's the difference between a restroom trailer and a porta potty?
A trailer offers flush toilets, sinks, and climate control; a porta potty is a single-unit stall with a holding tank. See the full restroom trailer rental lineup or the porta potty rental page for Berkeley-specific options.
Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.