How many restrooms does a wedding need?
A 150-guest, 5-hour wedding with a bar needs 5 standard units in our sizing table: 4 for the guest count and length, plus 1 because alcohol is served. One of the 5 should be wheelchair-accessible. A two-stall restroom trailer can replace 3–4 standard units, so many couples choose 1 trailer plus 1–2 deluxe units.
| Guests | Hours | Bar? | Standard-unit equivalent | Popular setup |
|---|---|---|---|---|
| 75 | 5 | Yes | 2 + 1 = 3 | 1 two-stall trailer |
| 100 | 5 | Yes | 3 + 1 = 4 | 1 trailer + 1 accessible unit |
| 150 | 5 | Yes | 4 + 1 = 5 | 1 trailer + 1 deluxe + 1 accessible |
| 200 | 6 | Yes | 5 + 2 = 7 | 2 trailers or 1 large trailer + units |
Restroom trailer or deluxe porta potty for a wedding?
Choose a restroom trailer when you have 100 or more guests, an evening reception, summer heat or a dress code; it has air conditioning, running water and lighting. Choose deluxe flushing units when there is no hose or outlet, when the site has no level truck access, or the budget is tighter. Many weddings mix both.

What should the venue have ready for a restroom trailer?
The venue needs level ground the truck can back onto, a 120-volt, 20-amp outlet within about 100 feet, and a hose spigot within about 100 feet. Mark the spot, keep the path lit after dark, and keep it 50 feet or more from the dinner tables. A wheelchair-accessible unit should sit beside the trailer.
See the restroom trailer page for full site requirements.
Questions renters ask us
How many restrooms do I need for a 150-guest wedding?
A 150-guest, 5-hour wedding with a bar needs 5 standard units in our sizing table: 4 for the guest count and length, plus 1 because alcohol is served. One should be wheelchair-accessible. A two-stall restroom trailer can replace 3–4 standard units for most weddings.
Is one restroom trailer enough for 80 guests?
Yes. One two-stall restroom trailer serves about 80 guests for a 4–5 hour event. Add a wheelchair-accessible portable unit if any guest may need one, because many trailers have steps. Bigger crowds or longer events need a larger trailer or added units.
What does a restroom trailer need on site?
A restroom trailer needs a standard 120-volt, 20-amp outdoor outlet within about 100 feet and a garden hose spigot within about 100 feet. It needs level ground the truck can back onto. Without water or power, ask about a fresh-water tank and generator add-on.
Do your restroom trailers have air conditioning?
Yes. Dennis Rental Works restroom trailers have air conditioning and heat, flushing toilets, running-water sinks, lighting and mirrors. Air conditioning matters in Frisco from May through September, when afternoon highs often reach the upper 90s.
How far ahead should I book a porta potty?
Book a jobsite unit 1–2 business days ahead. Book a weekend event 1–2 weeks ahead. Book spring and fall Saturdays and holiday weekends 2–4 weeks ahead. Book restroom trailers for weddings 4–8 weeks ahead, because trailer supply runs out first.
What is your cancellation policy?
Cancel 48 hours or more before scheduled delivery for a full refund. Cancel between 48 and 24 hours before delivery for a 50% refund. Cancellations within 24 hours of delivery, or after the truck is dispatched, are not refundable. Read our full rental terms before booking.
