How many people does a 4 stall restroom trailer handle?
Four stalls work well for crews or guest counts that outgrow a couple of single units but don't need a full 8 stall restroom trailer. Think 100 to 250 guests at an event, or a job site running 20 to 40 workers across a shift. OSHA 1926.51(c)(1) sets the construction baseline at one toilet facility for 20 workers or fewer, stepping up from there, so a 4 stall unit often covers a mid-size crew without needing extra standard porta potty rental add-ons. For events, planners in Bellingham lean on the same math used for weddings and festivals. If you're not sure where your numbers land, the how many porta potties do i need guide walks through headcount math, and the porta potty placement guide covers where to put the trailer once it's on site.
What does a 4 stall restroom trailer cost in Bellingham?
Cost depends on how long you need it and whether it's an event weekend or a construction month. Below is the general trailer pricing band pulled from rental data.
| 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 |
A weekend wedding near Bellingham typically runs toward the middle of that weekend band, while a multi-week construction rental spreads the cost out closer to the week rate. Delivery is billed separately, and the restroom trailer rental cost page breaks out delivery fees and add-ons in more detail. If four stalls is more than you need, the 2 stall restroom trailer and 4 stall restroom trailer options scale down, and the luxury restroom trailer line scales up for higher-end events. Need a shower too? Check the shower trailer rental page.
Is a 4 stall restroom trailer ADA accessible?
Not automatically. Most standard 4 stall trailers are built for stairs-up entry, so if you need wheelchair access you have to request it specifically. ADA Standards section 213.2 requires that where single-user units are clustered, at least 5 percent must be accessible, and never fewer than one. ADA Standards section 404.2.3 sets minimum clear door width at 32 inches, and section 405.2 caps ramp slope at 1:12 for any unit with a ramp. If your Bellingham event or site needs a compliant unit, ask for it up front rather than after delivery. The ada accessible porta potty page has unit specs, and ada restroom requirements covers the fuller rule set. Delivery crews also need roughly 60 feet of straight clearance behind the truck to park and level a trailer safely, so tight downtown Bellingham lots sometimes need a placement conversation before delivery day.
Weddings near Bellingham, and events out toward Geneva 3.8 miles east or Ferndale 11.0 miles northwest, all fall inside our standard delivery range. Construction crews working longer builds should also look at construction site services for pairing a trailer with a roll-off dumpster rental or temporary fence rental on the same site.
How far in advance should I book a 4 stall restroom trailer?
Book two to four weeks out for weddings and festivals, since trailers move fast on Bellingham weekends. Construction rentals can often book with less notice. If you're pinned for time, the emergency porta potty rental page covers faster turnaround options.
Does the trailer need a water hookup?
Most units run self-contained with onboard tanks, no hookup required. OSHA 1926.51(a)(1) requires an adequate supply of potable water at any workplace, and trailers meet that with tank refills during service, not a permanent line.
Can I put a 4 stall trailer on grass or gravel?
Yes, if the ground is level and firm. ADA Standards section 302.1 requires stable, firm, slip-resistant surfaces for any accessible unit, and the same logic keeps a non-accessible trailer from settling unevenly overnight.
What's the difference between this and stacking single units?
A trailer has interior lighting, sinks and a nicer feel than a row of porta john rental units. It also uses one footprint instead of four, which helps on tight Bellingham lots.
Who handles service and pumping during the rental?
Bellingham Porta Pros handles scheduled service through the rental period. Ask about frequency when you book, since event weekends and multi-week job sites need different service intervals.
Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.