2026 fall wedding: porta potty count for 200 guests with catering?

For 200 guests at a 6-hour wedding with dinner and an open bar, you need a minimum of four portable toilets, plus one ADA-compliant portable toilet. The units per person guideline starts at about one unit per 50 to 75 people for a four-hour event, but alcohol and longer durations increase usage. A full bar means more frequent visits, so I'd recommend adding an extra unit beyond the baseline count. The ADA 5 percent cluster rule requires at least one accessible unit in a cluster, and it's a good practice even without wheelchair-using guests for anyone with mobility issues or parents with strollers.

Choosing between standard units and a restroom trailer depends on the guest experience you want. Standard units are cost-effective and work fine on level ground. A restroom trailer offers flushing toilets and sinks but needs a generator or power hookup and level placement. For service, a single event like this doesn't require a mid-event pump-out if the units start empty, but confirm with the rental company. The price is driven by unit type, rental duration, and delivery distance.