How Many Stalls Do I Need for My Event?
Four stalls covers most backyard weddings, church fundraisers and mid-size block parties in Berwyn without turning the line into the main event. If you are closer to 300 guests, step up to the 8 stall restroom trailer instead, or add a standard porta potty rental or two as overflow. Smaller gatherings under 100 people usually do fine with the 2 stall restroom trailer, which costs less to deliver. Not sure where your headcount lands? The how many porta potties do I need guide walks through the math, and our request a quote form gets you a number fast. For job sites, OSHA 1926.51(c)(1) sets facility ratios by worker count, and that standard is worth checking before you settle on a trailer versus a bank of porta john rentals.
What Does a 4 Stall Trailer Cost in Berwyn?
Pricing depends on how long you need it and whether it is a weekend event or a month-long job site rental. A 4 stall trailer sits in the same category as our other restroom trailer rental units, priced by day, week, weekend or event length rather than a flat rate.
| duration | typical range |
|---|---|
| day | $175 to $2,500 |
| week | $150 to $1,650 |
| weekend | $900 to $3,000 |
| multi-day event | $2,499 to $3,899 |
Delivery adds a separate fee, and most trucks need about 60 feet of straight clearance behind them to back in and level the trailer. That matters on tighter Berwyn lots near Cermak Road or in narrower alley-access driveways. For a full cost breakdown across trailer types, see restroom trailer rental cost, or check porta potty rental cost if you are comparing against standard units.
Is a Restroom Trailer ADA Accessible?
Not automatically. Most 4 stall trailers are built with narrow interior stalls that do not meet accessibility standards on their own. ADA Standards section 403.5.1 calls for a 36 inch clear route, section 404.2.3 requires a 32 inch clear door opening, and section 304.3.1 requires a 60 inch turning circle inside the accessible space. If your event or Berwyn worksite needs a compliant option, pair the trailer with a dedicated ADA accessible porta potty rather than assuming the trailer stalls qualify. ADA Standards section 213.2 also requires at least one accessible unit in any cluster of single-user portable toilets, even when a trailer is the main restroom. Our ada restroom requirements page covers this in more depth if you are planning a public event in Berwyn.
For construction sites running a trailer alongside standard units, OSHA 1926.51(c)(1) still governs toilet counts by crew size, and 29 CFR 1910.141(d)(2) requires soap and towels or a hand-drying device at any washing station, not just sanitizer. That applies whether you are running a construction site services package or a straightforward temporary power pole and trailer combo. If your job involves paints, coatings or solvents, OSHA 1926.51(f)(1) also kicks in for washing facilities, separate from the general handwashing rule.
Weddings and private parties in Berwyn often add a luxury restroom trailer upgrade for finish quality, while festivals lean toward the higher-capacity option covered on our festival restroom rental page. If your event needs showers too, see shower trailer rental. For general delivery questions and service area coverage, our service areas page lists towns near Berwyn, including Forest Park about 3.0 miles northwest and Brookfield roughly 3.7 miles southwest, both within normal delivery range.
How many people can a 4 stall trailer handle?
Comfortably, a 4 stall trailer handles 100 to 300 guests over a single event day, depending on how concentrated the crowd is around meal times or ceremony breaks. For steady all-day job site use, treat it more like four fixed stalls under OSHA 1926.51(c)(1) ratios. Larger crowds should look at the 8 stall restroom trailer.
Does the trailer need a level pad?
Yes. Delivery trucks need close to 60 feet of straight clearance behind them, and the trailer itself needs a reasonably flat surface to sit level. Uneven ground affects the plumbing and door swing. Our crew checks the site during scheduling, which you can request through contact or request a quote.
Can I rent a 4 stall trailer for a construction site?
Yes, and many Berwyn contractors do exactly that when a project needs cleaner facilities than a standard unit offers. OSHA 1926.51(c)(1) still sets the minimum toilet ratio by worker count, so confirm your crew size before booking. Pair it with construction dumpster rental if you are also clearing debris.
What is included with the rental?
Flush toilets, running water and interior lighting come standard on most 4 stall units. Some upgrades add climate control or finished interiors, covered on the luxury restroom trailer page. Servicing frequency follows the same baseline as standard units under ANSI/PSAI Z4.3.
How far in advance should I book?
Book as early as you can, especially for weekend events during peak wedding and festival months in Berwyn. Trailers move fast for Saturday events. For last-minute needs, check emergency porta potty rental for faster turnaround options on standard units while the trailer schedule opens up.
Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.