How many porta potties for a 300-person corporate picnic?

For a 300-person corporate picnic lasting 6 hours with no alcohol, you should order a cluster of 6 standard portable toilets and at least one ADA-compliant portable toilet. This count follows the industry planning guideline of roughly one unit per 50 to 75 people for a four-hour event, adjusted upward for the longer duration and the catered lunch which increases usage. Since the ADA Standards require at least one accessible unit per cluster where multiple units are provided, your cluster will meet the ADA 5 percent cluster rule.

Consider adding a deluxe portable toilet for the management area if you want enhanced amenities like a flushing toilet and a sink. A deluxe unit costs more to rent than a standard unit due to its features and may require a service visit if the sink's fresh water tank runs low. For a one-day event, service frequency is not typically scheduled; the units are delivered clean and serviced after pickup. The rental cost is driven by the number and type of units, the rental duration, the delivery distance, and any add-ons like handwash stations. Ensure placement is on level ground with clear truck access for efficient delivery and removal.