What Comes Inside a 4 Stall Restroom Trailer?
Four private stalls, running water and interior lighting separate this from a bank of standard porta potty rental units lined up side by side. Most renters use it where guests expect a real restroom, not a box on a job site. If you need flushable fixtures without the extra stalls, the deluxe flushable porta potty is worth comparing on cost and footprint. Concord customers running weekend events often pair this trailer with a handwashing station rental near the food area, since 29 CFR 1910.141(d)(2) requires soap and towels or a hand dryer at washing stations, not sanitizer alone. For crews doing paint or coating work nearby, OSHA 1926.51(f)(1) covers washing facilities for that contaminant exposure specifically. Compare this option against the 2 stall restroom trailer and the 8 stall restroom trailer before booking, since guest count and event length change which size actually saves money. Full spec comparisons live on the restroom trailer rental page.
How Much Does a 4 Stall Restroom Trailer Cost in Concord?
| 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 |
Pricing depends on rental length, water hookup access and how far the trailer travels from our yard. A wedding site 5.3 miles out near Pleasant Hill costs less to service than one out past Martinez, 9.4 miles west. For a full cost breakdown across trailer sizes, see restroom trailer rental cost, and if a standard unit fits your budget better, check porta potty rental cost or porta potty rental per day for comparison numbers.
Where Can I Place a 4 Stall Restroom Trailer on My Property?
Placement needs a level, stable surface and clear access for delivery. ADA Standards section 302.1 requires floor and ground surfaces to be stable, firm and slip resistant, which rules out soft lawn or loose gravel for the trailer's leveling jacks. A roll-off style delivery for a unit this size needs roughly 60 feet of straight clearance behind the truck, so tight driveways in older Concord neighborhoods sometimes need a site visit first. If your event needs an accessible unit alongside the trailer, ADA Standards section 213.2 requires at least one accessible unit when portable toilets are clustered together, and our ADA accessible porta potty page covers that spec. Placement in the public right of way in Concord needs confirming with the city before delivery; we do not guess at that rule. See the porta potty placement guide and porta potty permit requirements for more on how that process works.
For construction crews, OSHA 1926.51(c) sets toilet counts by headcount rather than trailer size, so a 4 stall unit may or may not clear your requirement depending on crew count; the OSHA portable toilet requirements page walks through the ratios. Event planners in Concord booking wedding restroom rental or festival restroom rental jobs tend to reserve trailers 2 to 3 weeks out during peak season. Construction sites juggling a trailer, a roll-off dumpster rental, and a temporary fence rental should coordinate delivery windows so the truck has room to maneuver.
How many people can a 4 stall restroom trailer serve?
There is no fixed number in code for events, but four stalls comfortably cover 100 to 150 guests over a few hours. Longer events or all-day festivals in Concord push that lower. Compare against the 8 stall restroom trailer for larger counts.
Does the trailer need a water hookup?
It works best with one. A garden hose connection to an outdoor spigot handles most residential and event sites. Without a hookup, we can supply onboard water, though service intervals shorten and cost changes.
Can I rent this for a construction job instead of an event?
Yes. Many Concord contractors choose it for finish crews or supervisors who want a nicer restroom than standard units. Pair it with construction site services planning and standard units for the general labor force per OSHA 1926.51(c).
How far in advance should I book for a wedding?
Two to three weeks is typical for Concord weekends. Peak season fills faster, and trailers booked for event restroom rental jobs near Clayton, 5.1 miles southeast, get reserved early.
What is the difference between this and a luxury trailer?
The luxury restroom trailer adds finishes like upgraded fixtures and climate control. A 4 stall unit covers the same stall count at a lower price point for guests who just need clean, private restrooms.

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