How much does an 8 stall restroom trailer cost in Seattle?
Trailer pricing swings hard depending on stall count and rental length, because a unit built for a wedding at a Mercer Island venue costs differently than one parked on a job site for a month. Our restroom trailer rental cost data shows day rates from 175 to 2500 dollars, weekly runs from 150 to 1650, and weekend blocks from 900 to 3000. Multi-day festivals often book the flat event rate instead.
| duration | low | typical | high |
|---|---|---|---|
| day | 175 | 800 | 2500 |
| week | 150 | 1397 | 1650 |
| event | 2499 | 3500 | 3899 |
| weekend | 900 | 2000 | 3000 |
An 8 stall unit sits at the upper end of these bands most of the time. If 8 stalls is more than you need, look at the 2 stall restroom trailer or 4 stall restroom trailer pages, or price out a bank of standard porta potty rental units instead. Delivery adds a separate fee, and we cover that on porta potty rental cost.
Where can an 8 stall trailer be placed on my Seattle property?
Placement in Seattle is not casual, because anything sitting in the public right-of-way needs sign-off first. SDOT's Storage Container and Residential Dumpster Permit process, under Seattle Municipal Code Title 15, requires a Street Use permit before placement, and units in the right-of-way must sit at least 30 feet from intersections, 10 feet from driveways, and 15 feet from fire hydrants. Whether a restroom trailer specifically falls under that named permit type, or under the general prohibition in SMC 15.04.010 on using any public place without one, has not been confirmed with the city. If your event or job site is on private property, this usually doesn't apply, but confirm before delivery. Our porta potty permit requirements page and the dumpster permit requirements page cover the mechanics of that process. For layout help, see the porta potty placement guide.
Does an 8 stall trailer meet ADA and OSHA requirements?
An 8 stall trailer alone doesn't satisfy accessibility rules unless one of those stalls is built to spec. ADA Standards section 213.2 requires that where units are clustered, at least 5 percent, and never fewer than one, be accessible. ADA 404.2.3 sets a 32 inch minimum clear door opening, and 304.3.1 calls for a 60 inch turning circle inside. Section 308.2.1 also governs reach ranges for fixtures inside the stall. For crews on a jobsite, OSHA 1926.51(c) sets the toilet ratio: one facility for 20 workers or fewer, scaling up from there. See ADA accessible porta potty and ADA restroom requirements for the full breakdown, and how many porta potties do I need if you're sizing a crew instead of a guest list.
Seattle's wet season adds another variable. With 91 days a year seeing at least 0.10 inch of rain, per NOAA climate normals for Sea-Tac Airport, stable, slip-resistant flooring inside the trailer matters, which lines up with ADA Standards section 302.1 on floor surfaces. Check porta potty in winter for cold-weather notes, and construction site services if you're bundling the trailer with fencing or a dumpster.
How many people can an 8 stall trailer actually serve in one day?
There's no fixed number in the rulebook for events, but ANSI/PSAI Z4.3 sets a baseline of one service visit per week for up to 10 users across a 40 hour week as a sanitation reference point. For a single event day, 8 stalls comfortably handles a few hundred guests with normal turnover. Heavier crowds need a second trailer or added standard units.
Do I need a permit if the trailer stays on my own driveway?
Private property placement generally sidesteps the SDOT Street Use permit, since that process governs the public right-of-way. Still confirm with the city if any part of the trailer or its ramp overhangs the sidewalk or curb.
Can I get an 8 stall trailer for a single weekend event?
Yes. Weekend rates for an 8 stall trailer in Seattle run from 900 to 3000 dollars depending on stall finish and delivery distance. Multi-day festivals typically use the flat event rate instead of daily stacking.
What's the difference between an 8 stall trailer and a 4 stall unit?
Stall count and footprint. An 8 stall trailer needs more clearance for delivery and a bigger footprint on site, while a 4 stall restroom trailer fits tighter lots and smaller guest counts.
Does Seattle Porta Pros deliver outside Seattle proper?
Yes, including Mercer Island, 8.9 miles southeast, and Shoreline, 11.8 miles north. Check service areas for the full list or request a quote directly.
Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.