40-person wedding with heavy drinking: two units or three?

Order three standard portable toilets for a 40-person wedding with heavy drinking. The number of units is the immediate solution for a high-use crowd. A typical event guideline starts near one standard unit per 50 to 75 people for a four-hour event. Your event is five hours with an open bar, which increases usage. Alcohol consumption requires more units because guests use the restroom more frequently. Two units would likely be insufficient and lead to lines. A third unit prevents congestion and improves guest comfort.

Upgrading to a deluxe unit or a small restroom trailer offers a nicer experience but costs more. A deluxe unit has a flushing toilet and a sink. A restroom trailer needs level ground and electrical power from a generator or hookup. The rental price increases with the unit's features, the event duration, and the service frequency.

Service is critical. A weekly service visit is the norm, but for a single-day event with heavy use, schedule a pump-out after the event. Confirm with the rental company that they can service the units on your timeline. With flat ground and good truck access, service will be straightforward.