What Is a 4 Stall Restroom Trailer?
Think of it as a real bathroom on wheels. Four private stalls, running water, and a step up from the single-unit feel of a standard porta potty rental. Boise Porta Pros builds these for events and jobsites where a line of portable toilets would look and feel wrong. Compare it against the 2 stall restroom trailer if your headcount is lighter, or size up to the 8 stall restroom trailer for a bigger crowd. Most Boise clients land on the 4 stall size for guest counts between roughly 75 and 200 people over a single day, though multi-day construction crews use it too. If you want climbing detail beyond trailers, the portable restroom rental page and the deluxe flushable porta potty option both sit one step down in price and footprint.
How Much Does a 4 Stall Restroom Trailer Cost in Boise?
Pricing depends on duration, distance, and whether it is a wedding weekend or a five-day jobsite rental. Here is the general shape of it:
| duration | low | typical | high |
|---|---|---|---|
| day | 175 | 800 | 2500 |
| week | 150 | 1397 | 1650 |
| weekend | 900 | 2000 | 3000 |
| event (multi-day) | 2499 | 3500 | 3899 |
Delivery adds to that, and Boise Porta Pros quotes it separately since it depends on where in Boise the trailer is going and how far the truck has to travel. For a full cost breakdown across every unit type, the restroom trailer rental cost page walks through it, and the general porta potty rental cost page covers standard units for comparison. If your budget points toward daily porta potty math instead, see porta potty rental per day.
Where Can I Place a 4 Stall Restroom Trailer in Boise?
Placement needs a flat, level pad and clear truck access, and if the trailer needs to sit on or near a public street or sidewalk in Boise, that placement needs confirming with the city before delivery day. Boise Porta Pros checks ground clearance and slope on-site before scheduling. A trailer this size needs a longer approach than a standard unit; a roll-off delivery alone needs about 60 feet of straight clearance behind the truck, and a restroom trailer needs comparable room to back in and level out. If you're hosting near Garden City, about 6.8 miles northwest of central Boise, or out toward Meridian, 10.1 miles west, delivery routing gets factored into the quote. For guidance on where any restroom unit belongs on a site, the porta potty placement guide covers grading, access and clearance rules that apply to trailers too. Accessibility matters here as well: ADA Standards section 403.5.1 sets a 36 inch minimum clear width for an accessible route, and section 404.2.3 requires at least a 32 inch clear door opening, both worth checking against your trailer's accessible stall if you're expecting guests who need it. Pair the trailer with a temporary fence rental if the event site needs a controlled perimeter, or add a light tower rental for evening events.
How many people can a 4 stall restroom trailer serve?
There's no fixed OSHA count for trailers specifically, but the construction toilet ratio under OSHA 1926.51(c)(1) calls for 1 facility per 20 workers on a jobsite. For events, four stalls comfortably handle steady traffic from a few hundred guests across an evening; for exact headcounts see how many porta potties do I need.
Does the trailer need power and water hookup?
Most units run self-contained with onboard water and holding tanks, though some configurations want a nearby power source. Boise Porta Pros will tell you during the quote whether your site needs a temporary power pole or if the trailer's built-in system covers everything.
Is a 4 stall trailer ADA accessible?
Not automatically. If you need an accessible stall, ask for it specifically, since ADA Standards section 213.2 requires at least one accessible unit where units are clustered. See the ADA accessible porta potty page or ADA restroom requirements for full detail.
How far in advance should I book for a Boise wedding?
Weekends fill fast, especially spring through fall. Book as soon as your date and headcount are set. The wedding restroom rental and event restroom rental pages cover timing and add-ons worth planning around.
Can I rent a smaller or larger trailer instead?
Yes. Boise Porta Pros offers everything from the 2 stall restroom trailer up through the 8 stall restroom trailer, plus a luxury restroom trailer option and a separate shower trailer rental for multi-day sites.
Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.