How Many Restrooms Does a Wedding Need?
Guest count decides this more than anything else. A rule of thumb: figure one unit for every 50 to 75 guests over a four to six hour reception, and add one if there is an open bar. This isn't OSHA territory (that standard covers job sites), but the ratio logic in OSHA 1926.51(c) is a decent stand-in: more people, more fixtures, no way around it. For a 150 person wedding in Redmond, that lands around two to three standard portable toilets or one 2 stall restroom trailer. Outdoor venues without indoor plumbing nearby should round up, not down. If you're hosting near Union Hill-Novelty Hill, about 6.4 miles east of Redmond, or out toward Woodinville's wine country venues 7.1 miles north, factor in that guests won't want to walk far between the dance floor and the door. Not sure where you land? The porta potty needs calculator page walks through it step by step, and our request a quote form gets you a number fast.
Every unit we place holds a 60 to 70 gallon tank, sized for extended outdoor use without a mid-event service call. For anything formal, skip the bare-bones unit. A deluxe flushable porta potty or a proper restroom trailer rental reads a lot better next to a wedding arch than a standard blue box.
What Does Wedding Porta Potty Rental Cost?
A standard unit for a wedding weekend typically runs 125 to 400 dollars, and an ADA-accessible unit runs 199 to 300 dollars over the same span, both priced as short flat-rate blocks rather than daily add-ups. Restroom trailers cost more but look the part: a weekend trailer rental runs 900 to 3,000 dollars depending on stall count and finish level.
| Unit | Weekend Rate |
|---|---|
| Standard portable toilet | $125 - $400 |
| ADA accessible unit | $199 - $300 |
| Deluxe flushable unit | see quote |
| Restroom trailer | $900 - $3,000 |
Delivery adds 125 to 540 dollars for a weekend drop and pickup, and that's where distance matters. A site 11 miles out toward Kenmore or Bothell costs more to service than one inside Redmond proper. For guest counts over 100, a 4 stall restroom trailer often beats stacking single units both on price per head and on how it looks in photos. Larger receptions, think 200-plus, usually land in 8 stall restroom trailer territory. Full breakdowns of what drives the number up or down live on our wedding porta potty rental cost page and the general porta potty rental cost guide. If your date is set and the guest list isn't final yet, book the trailer tier you can downsize rather than the one you'd need to upgrade.
Do Wedding Venues Require ADA Accessible Restrooms?
Many do, and it's smart regardless of what's required. Under ADA Standards 213.2, when portable units are clustered, at least 5 percent, and never fewer than one, has to be accessible. That means even a two-unit wedding setup needs one ADA unit. The accessible unit needs a 60 inch turning circle inside per ADA Standards 304.3.1, and the door opening has to clear 32 inches per ADA Standards 404.2.3, so don't assume any unit on a truck qualifies. Check with your venue directly. Redmond municipal placement rules for the public right of way are not something we'll guess at here. If your reception spills onto a street or sidewalk, confirm placement with the City of Redmond before delivery day. Our ADA restroom requirements page covers the spec details, and the porta potty placement guide covers where units can and can't go on private property. Grass, gravel, a paved lot: surface matters for delivery trucks and for guests in heels.
If your venue is more DIY, like a family property or a rented barn, you're the one making the call. A portable restroom rental delivered a day early gives you time to fix placement before guests arrive, and our porta potty rental checklist catches the details people forget, like power for a trailer or a level pad for the unit.
How far in advance should I book restrooms for a wedding?
Book as soon as your date and venue are locked, ideally two to three months out. Wedding weekends cluster on the same Saturdays across Redmond, and trailers book faster than standard units. Late requests aren't impossible, just riskier on unit choice.
Can I rent a restroom trailer instead of standalone porta potties?
Yes, and most formal weddings do. A luxury restroom trailer gives climate control, mirrors and real sinks, which standalone units can't match. It costs more but photographs better and keeps lines moving at a bigger reception.
Do wedding restrooms need handwashing stations?
Trailers include sinks, but standalone units usually don't. Add a handwashing station rental or a portable sink rental nearby, since 29 CFR 1910.141(d)(2) requires soap and towels, not sanitizer alone, at any washing station you set up.
What if my venue is outside Redmond?
We service venues across the area, including toward Issaquah, about 13.1 miles south. Delivery fees shift with distance, so mention your exact venue address when you request a quote so pricing is accurate up front.
Can I get a porta potty for a wedding on short notice?
Often, yes. Check our emergency porta potty rental option for last minute bookings. Availability depends on the weekend and unit type, so call rather than assume, especially during peak wedding season.
Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.