Skip to content

Call Us
0161 344 2581


Event Planning Essentials: How to Determine the Right Number of Portable Toilets for Your Outdoor Event

Determining the right number of portable toilets for an outdoor event is crucial for guest comfort and satisfaction. Here are some structured steps and tips to help you calculate the appropriate quantity, ensuring a successful and hassle-free experience for everyone involved.

Understand Your Event Dynamics

  • Guest Count: The primary factor in determining the number of portable toilets needed is the number of attendees. A higher number of guests will naturally require more facilities.
  • Event Duration: Longer events mean that attendees will likely need to use the restroom facilities multiple times, increasing the demand for portable toilets.
  • Food and Beverage Consumption: Serving food and beverages, especially alcohol, can increase restroom usage. Events with alcohol typically require more toilets than those without.
  • Children’s Attendance: If children are expected at the event, consider adding family or larger units to accommodate parents with children.

Basic Calculation Guidelines

A common guideline suggests having at least one portable toilet for every 100 guests for an event lasting up to four hours. For events longer than four hours or serving alcohol, adjustments should be made to accommodate increased usage.

Adjustments for Specific Needs

  • Alcohol Consumption: Increase the number of portable toilets by 15-20% if alcohol is served, as it tends to increase the frequency of restroom visits.
  • Gender Split: If possible, aim for a higher number of units or even separate facilities for men and women to reduce wait times. Including additional urinals in men’s toilets can also help manage queues more efficiently.
  • Accessibility: Ensure that a portion of the portable toilets are compliant with the Equality Act 2010 to accommodate guests with disabilities. Typically, at least 5% of the total toilets provided should be accessible, with a minimum of one accessible unit.

Consider Peak Times

Anticipate when peak usage might occur (e.g., during intermissions, right after meals) and consider adding extra units to accommodate these rushes.


Location and Layout

Place toilets in several locations around the event space to prevent overcrowding in one area and to ensure they are conveniently accessible from all parts of the venue.

Advanced Planning

  • Reserve Early: For large events or during busy seasons, reserve your portable toilets well in advance to ensure availability.
  • Consult with Experts: Companies like Challenger Site Services can provide valuable advice based on their experience with similar events and help you make an informed decision.

Monitoring and Maintenance

For multi-day events, plan for daily cleaning and restocking of supplies to maintain hygiene and comfort. This may also influence the number of units you need to rent, as regularly serviced toilets can handle higher traffic.

Final Considerations

Remember, these guidelines serve as a starting point. The specifics of your event might necessitate adjustments. When in doubt, err on the side of caution by renting a few extra units. The convenience and comfort of your guests should be a top priority, and having ample facilities is a key component of that. Consulting with a seasoned portable toilet provider will help tailor your plan to the event’s unique requirements, ensuring a positive experience for all attendees.