How Big Is a 4 Stall Restroom Trailer?
A 4 stall unit sits between the smaller 2 stall restroom trailer and the larger 8 stall restroom trailer, built for groups roughly 100 to 300 people over a day. It needs a level pad and clear approach for the delivery truck, similar to what a roll-off dumpster rental needs, since our trucks want about 60 feet of straight clearance behind them to back in and level the trailer. Inside, doorways and aisle space matter if anyone on site uses a wheelchair or cane. ADA Standards section 404.2.3 sets minimum clear door opening width at 32 inches, and ADA Standards section 403.5.1 calls for a 36 inch clear route to the unit. If your event needs a fully accessible restroom instead, look at the ADA accessible porta potty or read the ADA restroom requirements page before you commit to a layout. Encinitas sites with uneven terrain, sloped driveways or sand access near the coast should flag that when booking, since placement affects both leveling and how fast we can service the tank.
What Does a 4 Stall Restroom Trailer Cost in Encinitas?
Pricing depends on rental length and how far the trailer travels. Weekend events, weekly builds and month-long jobs all land in different bands, and a longer rental never costs less than a shorter one on the same unit.
| Duration | Typical Range |
|---|---|
| Day | $175 - $2,500 |
| Week | $150 - $1,650 |
| Weekend | $900 - $3,000 |
| Event | $2,499 - $3,899 |
These figures reflect trailer rentals broadly, since 4 stall pricing sits inside the same measured range as other restroom trailer sizes. For a full cost breakdown by duration and add-ons, check restroom trailer rental cost or compare against simpler options on the porta potty rental cost page. If your event only needs standard units instead of a trailer, standard porta potty rental or the deluxe flushable porta potty may cost less. Delivery fees run separately and depend on distance and timing, so ask about that when you request a quote.
Do I Need a 4 Stall Trailer or Something Smaller?
Headcount and event length decide it. A one-day backyard wedding under 100 guests often does fine with the 2 stall restroom trailer or even a pair of standard units. Construction crews sizing sanitation for a job site should look at OSHA 1926.51(c), which sets toilet counts by worker headcount: 1 facility for 20 workers or fewer, scaling up from there. A 4 stall trailer often beats several standalone units once headcount climbs past 100, because it centralizes traffic and cuts servicing stops. For weddings specifically, see wedding restroom rental; for festivals and fairs, festival restroom rental and county fair restrooms cover higher-traffic layouts. Farms and agricultural operations near Encinitas have separate rules under OSHA 1928.110, which calls for one facility per 20 hand-labor employees within a quarter mile walk; that guide lives at farm and agricultural restrooms. Not sure what fits your headcount? The how many porta potties do I need guide walks through the math, and construction site services covers job site sanitation planning broadly.
Frequently asked questions
How much water does a 4 stall trailer hold?
We don't publish exact tank figures for trailers on this page, but OSHA 1926.51(a)(1) requires an adequate supply of potable water at any place of employment, and our crews size tanks to your event length and headcount. Ask about your specific stall count and hours when you request a quote.
Can Encinitas Porta Pros deliver to nearby towns too?
Yes. We regularly serve Solana Beach, 5.7 miles south, and Rancho Santa Fe, 5.7 miles southeast, along with Lake San Marcos and Elfin Forest further northeast. Check service areas for full coverage.
Does a 4 stall trailer need a permit in Encinitas?
Placement in a public right of way needs confirming with the city; we have not verified a specific Encinitas ordinance for trailer placement. See porta potty permit requirements or dumpster permit requirements for related permit context, and call the city directly for a trailer-specific answer.
What's the difference between a 4 stall and 8 stall trailer?
Stall count and footprint. The 8 stall restroom trailer handles larger crowds, generally 300 or more, while the 4 stall fits mid-size weddings, races and job sites comfortably.
Do you offer handwashing separately from the trailer?
Yes. Standalone handwashing station rental and portable sink rental options exist if your trailer's built-in sinks need backup, and 29 CFR 1910.141(d)(2) requires soap and towels at any washing facility, not sanitizer alone.
Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.