How many restrooms does a wedding need?
A porta potty for wedding use is not a one-size question, and portable toilet rental wedding planning always starts with headcount.
Guest count and bar service decide it more than anything else. A backyard reception for 60 people runs fine on two standard porta potty rentals or one deluxe flushable porta potty unit if you want sinks. Push past 150 guests with an open bar and you're looking at a 2 stall restroom trailer at minimum, sometimes a 4 stall restroom trailer if the reception runs five or six hours. OSHA's construction ratio under 1926.51(c) doesn't apply to a private event, but it's still the closest planning benchmark most rental companies use: roughly one facility per 40 to 50 people over a work-length shift, and a wedding with dancing and drinking pushes usage higher than that. Saint Charles Porta Pros also asks about the venue itself. A restored barn or a private estate west toward St. Peters, 6.9 miles away, often has no plumbing built for 200 guests, which is exactly when a restroom trailer rental earns its cost. If the guest list includes anyone using a wheelchair or has mobility limits, ADA Standards section 213.2 calls for at least one accessible unit in any cluster of portable toilets, and our ADA accessible porta potty units meet the 60 inch turning circle required under section 304.3.1. Not sure where you land, whether you're planning a backyard porta potty rental for wedding guests or a full-acreage event? Use the how many porta potties do I need guide before you book.
What does wedding porta potty rental cost in Saint Charles?
Cost depends on unit type and how long you need it on site, and weekend pricing is its own category separate from a daily or weekly rate.
| Unit | Day | Week | Month |
|---|---|---|---|
| Standard porta potty | $100 - $350 | $130 - $500 | $125 - $325 |
| ADA accessible unit | $200 - $400 | $240 - $400 | - |
| Deluxe flushable unit | $85 - $1,200 | $150 - $290 | - |
| Restroom trailer | $175 - $2,500 | $1,650 - $2,500 | - |
A standard unit rented for a Saturday-only wedding typically lands closer to a weekend rate of $125 to $400 rather than the single-day figure above, since most venues book Friday delivery through Sunday pickup. Restroom trailers booked specifically as event units run $2,499 to $3,899 for the package, which usually covers delivery, setup, and pickup around your ceremony and reception times. Add a delivery fee, typically $100 to $500 depending on distance and access, and factor in whether your site needs a temporary fence rental to screen the units from the ceremony area. Full pricing detail, including how weekday and weekend rates compare, lives on the porta potty rental cost and restroom trailer rental cost pages. If your venue wants a monthly hold instead of a single event date, check monthly porta potty rental pricing separately.
Why rent a restroom trailer instead of a standard unit?
A trailer gives guests flushing toilets, running water, and climate control instead of a holding tank and a hand sanitizer pump. Standard units work fine for a casual outdoor wedding, but they run on a 60 to 70 gallon holding tank and stand about 92 inches tall on a footprint near 44 by 48 inches, which some brides find too utilitarian for photos near the reception tent. A luxury restroom trailer solves that with interior finishes closer to a real bathroom, real mirrors, and separate stalls for men and women. Larger guest lists in Saint Charles, especially events pushing past 200 people, often step up to an 8 stall restroom trailer to keep lines short during cocktail hour. Handwashing matters here too: 29 CFR 1910.141(d)(2) requires soap and towels or a hand drying device wherever handwashing is provided, not just sanitizer, which is one reason trailers with built-in sinks are popular for formal events. If your venue sits on a gravel lot or unpaved field, ask about placement early using the porta potty placement guide, since delivery trucks generally need a clear, level path to set units without tearing up landscaping. Outdoor venues near Chesterfield, about 17.1 miles south of Saint Charles, frequently combine a trailer with a handwashing station rental near the catering tent for guest convenience away from the main restroom.
How far in advance should I book a wedding restroom trailer?
Book as early as your venue and catering, ideally 60 to 90 days out for peak wedding season weekends. Trailers and deluxe units book up fastest May through October. If your date is inside two weeks, call anyway. Saint Charles Porta Pros can sometimes work in a late booking depending on what's already out.
Do wedding porta potties need to be near the reception?
Yes, but not in the photos. Keep units within a short walk of the reception area, ideally on a level, accessible path meeting the 36 inch clearance called for in ADA Standards section 403.5.1, while staying screened by landscaping, a tent wall, or a low fence.
Can I get a porta potty for just the ceremony, not the whole reception?
Yes, short-term rentals are common for ceremony-only coverage, especially at outdoor sites without existing restrooms. Ask about a weekend rate rather than a daily one, since most weddings need delivery a day ahead and pickup the day after regardless of ceremony length.
What's included with a wedding restroom trailer rental?
Delivery, setup, and pickup are standard, along with running water and interior lighting. Ask specifically whether your quote includes a generator, since trailers need power and not every venue has an accessible outlet nearby.
Is a handwashing station needed if I rent a restroom trailer?
Not usually, since most trailers include sinks inside each stall. Standard porta potty setups without trailers benefit from an add-on handwashing station near the food or bar area, since guests won't walk back to the restroom between drinks.
Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.