The number of portable toilets you need is driven by how many people, for how many hours, whether alcohol or food is served, and whether the units get serviced during the event. Industry planning charts start from roughly one unit per 50 to 75 people for a four-hour event and add units for alcohol, longer hours and women-heavy crowds. This category covers the planning math, the ADA percentage rule for clusters and how to sanity check a quote.
One thing people often miss is that the ADA 5 percent rule applies to the total number of units in each cluster at a single location, not the entire…
For a six-hour wedding with 150 guests and an open bar, rent four standard portable toilets and one ADA-compliant unit. The ADA cluster rule requires…
Hector's count is a good start, but a permit office checks the service frequency plan for an eight-hour event with alcohol. We require a mid-day…
We're throwing a 40th anniversary party for my parents at a barn venue. The barn has no indoor plumbing. There will be 100 guests, the party runs…
We're planning a backyard wedding for 100 guests with an open bar running about six hours. The ground is level grass, and a truck can get within 20…
We're planning an 80-guest backyard wedding with a 4-hour open bar. The rental company suggested two standard units. Our ground is level grass, and a…
We're planning an October backyard wedding for 100 guests, with more women than men. The event runs six hours, with dinner and an open bar. The…
I'm a site super for a small commercial build, and I'm placing our first porta potty order for a crew of 30. We'll be on site ten hours a day, five…
You need more than 7 standard units for a 10-hour event with 350 people; plan for 9 or 10 standard units plus one ADA-compliant portable toilet.…
Jules is right about the unit count for guests, but you must also provide separate toilets for staff and volunteers under OSHA 1910.141. For 20 or…
Hector is right on the count, but the ADA cluster rule applies if you rent two or more units, even for a private event. The 2010 ADA Standards…
I'm planning a 40-guest wedding reception at a private farm. It's a five-hour evening event with an open bar and heavy hors d'oeuvres. The ground is…
I'm planning a large outdoor festival on city park grounds, expecting about 1,200 people over an eight-hour day with beer and food trucks. The permit…
For an 80-person wedding with alcohol, plan for more than the one unit per 50 people guideline. Add at least one ADA-compliant unit for accessibility…
We ran a two-day outdoor music festival last year with about 2000 people a day, mostly men. The ground is a flat field with truck access. We had a…
I'm planning a brewery anniversary party in the parking lot and beer garden. We're expecting 250 guests over six hours, with our own craft beer…
OSHA requires a 45-person warehouse cleanout crew to use the general industry toilet rule, 29 CFR 1910.141, which mandates three toilets. The…
I'm laying out the restrooms for a one-day outdoor concert with a 500-person capacity. The gates open at noon, the headliner ends around 10 PM, and…
We're planning a wedding reception for 100 guests at a local park, and it's scheduled to last about five hours. We're serving a full dinner and have…
I'm planning a marathon for 800 runners in a city park. The event runs 5 hours, but usage will spike at the start line before the race and the finish…
The forum team is correct that two standard units are the right choice. I’ll add that the ADA cluster rule does not apply to a private residence, but…
I'm planning a 5,000-runner marathon for October 2026, and the start line logistics are giving me pause. All runners will arrive within a one-hour…
Our annual festival draws about 500 people over six hours, mostly women, with beer and food vendors on grass in a city park. The rental company's…
Our festival is using a bank of 10 standard portable toilets, all in one cluster. The event runs for two days, about eight hours of public access…
My wedding is in May for 200 guests, with a six-hour reception and an open bar on my parents' property. We are splurging on flushing portable toilets…
