One of the most common questions we receive is, “How many porta-potties should I get for my event?” The truth is, it depends on the size and type of event. We list a couple determining factors to help you decide how many portable restrooms to order for your special occasion.

Here are some of the factors that could impact the number of toilets you need to get:

  • The length of your event – You should assume that your guests will need the toilet at least once every three to four hours. The longer the event, the more toilets you should be providing. A smaller party can suffice with two extra toilets, but a larger party over a duration of time will need much more.
  • The number of people attending the event – Obviously, the more people you have attending your event means you should have more toilets available. As a rule of thumb, one portable toilet per 50 people is a good starting point. That means if you have 100 people attending you should have at least two toilets, three toilets for 150 people, and so on.  If your event is on multiple days, use the day with the largest attendance.
  • If your guests will be drinking alcohol – Alcohol makes guests urinate 30-40% more often. If your event will serve alcohol, it is a good idea to acquire a couple more amenities to account for the frequent use.
  • If you have access to permanent facilities – If your guests will be able to access permanent bathrooms or structural facilities, you can drastically cut down the number of portable restrooms you will need. However, it is important to know if you will really have access to those facilities. You don’t want to opt for fewer potable restrooms only to find out during the event that you can’t access the permanent facilities because they are locked or barred.

Please refer to this chart for more information regarding restroom quantities or contact us and we will be happy to help you determine the right restroom services for your event.


Note: Add one Handicap Accessible Restroom per 20 portable restrooms, or a minimum of one for events open to the public.  Adequate hand washing should also be provided with restrooms in all food service areas.
A minimum of (1) handwash station should be added per (4) restrooms