What Is a 4 Stall Restroom Trailer?
It's a trailer with four separate private stalls, each with its own door, so four people can use the restroom at once instead of waiting on one unit. That matters for event restroom rental where lines back up fast, and for construction site services with a bigger crew rotating through breaks. Compare it against the smaller 2 stall restroom trailer if your guest count or crew size is under 75, or step up to the 8 stall restroom trailer for anything past 300 people. Redmond Porta Pros builds these out with flushing fixtures and running water, closer to what you'd get from a deluxe flushable porta potty but with more privacy and space to move. If your event needs washing beyond toilets, pair it with a handwashing station rental or a portable sink rental. For weddings specifically, see wedding restroom rental; for anything with a stage or a beer garden, check festival restroom rental or concert restroom rental.
How Much Does a 4 Stall Restroom Trailer Cost in Redmond?
| duration | low | typical | high |
|---|---|---|---|
| day | 175 | 800 | 2500 |
| week | 150 | 1397 | 1650 |
| event | 2499 | 3500 | 3899 |
A single weekend booking generally lands between 900 and 3,000 dollars depending on the trailer's finish and your delivery window. Multi-day events price higher because of extended servicing and pump-outs, not just the rental itself. For a broader breakdown across trailer types, see restroom trailer rental cost, and if you're weighing a trailer against standard units, check porta potty rental cost or monthly porta potty rental for longer jobs. Delivery itself typically falls in the 100 to 500 dollar range depending on distance and access. Redmond sits 6.4 miles from Union Hill-Novelty Hill and 7.1 miles from Woodinville, both inside typical delivery range for most bookings out of Redmond, WA.
Where Can We Place a 4 Stall Restroom Trailer On Site?
You need firm, level ground and enough clearance for the delivery truck to back in and level the trailer. ADA Standards section 405.2 caps ramp slope at 1:12, so any accessible approach has to stay within that grade, and ADA Standards section 304.3.1 calls for a 60 inch turning circle wherever an accessible stall is required. If your event or crew needs an accessible unit alongside the trailer, see our ADA accessible porta potty page. For general placement rules, our porta potty placement guide covers ground surface and access requirements, and ADA Standards section 302.1 also requires the surface itself to be stable, firm and slip resistant. If you're not sure whether your site needs a permit for placement in the right of way, that has to get confirmed with the City of Redmond directly; check porta potty permit requirements and dumpster permit requirements if you're pairing the trailer with a roll-off. Jobsites also fall under OSHA 1926.51(c)(1) for toilet ratios, which is what drives whether one trailer covers your crew or you need to add standard porta potty rental units on top.
Need help figuring out unit count before you book? Use how many porta potties do I need as a starting point, and browse restroom trailer rental for the full trailer lineup, including the luxury restroom trailer and shower trailer rental options.
How many people can a 4 stall restroom trailer handle in a day?
It depends on event type more than a fixed number, since weddings move slower than festivals. As a rule of thumb, four stalls comfortably serve gatherings up to roughly 150 to 250 guests over a single day. For larger counts, look at the 8 stall restroom trailer instead.
Does the 4 stall trailer need a water hookup?
Yes, it works best with a connection to a hose bib or water source on site, though many units carry an internal freshwater tank for locations without hookups. Ask about tank capacity when you book through request a quote.
Can we rent a 4 stall trailer for a construction jobsite?
Yes, and it can help meet OSHA 1926.51(c)(1) ratios for larger crews while offering more comfort than standard units. Many contractors add it alongside construction dumpster rental for a full site setup.
What's the difference between a 4 stall and an 8 stall trailer?
Stall count and footprint. The 4 stall fits tighter lots and mid-size events; the 8 stall restroom trailer suits larger festivals or all-day crowds where line length matters more.
How far in advance should we book in Redmond?
Book as early as you can, especially for weekend events, since trailer availability tightens fast during peak wedding and festival season. Contact Redmond Porta Pros directly to lock in a date.

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