How Many Units a Chicago Event Needs
Four numbers set the count: people on site, hours each, whether a bar is open, and how the crowd moves. Then Chicago puts a floor underneath it.
- Episode 1
- 3:11
Show notes
Four numbers set the count: people on site, hours each, whether a bar is open, and how the crowd moves. Then Chicago puts a floor underneath it.
Episode 1 of The Chicago Restroom Count, published 16 October 2026 by Flushbridge Porta Potty Prime, 2003 W Fulton St #593, Chicago, IL 60612. Two hosts, 3:11.
What the episode covers
- The four numbers that drive the count. People on site, how many hours each of them is there, whether alcohol is being served, and how the crowd moves through the day. Change any one of them and the count changes.
- The rule of thumb, and why it is only a starting point. The commonly quoted ratio gets you an opening figure, not an answer; the episode works through what it leaves out.
- What Chicago requires as a minimum. The city sets a floor that applies even when the rule of thumb lands lower, which is the part most organisers have not seen.
- How many units need to be accessible. The accessible share is counted separately from the total, and it is not an optional extra.
- Handwashing is its own count. Handwashing stations are not covered by the restroom number and have to be worked out alongside it.
- Where counts usually go wrong. Underestimating peak crowd, forgetting staff and vendors, and treating a five hour open bar like a two hour reception.
The written guide behind this episode
The written version, with the city minimum, the accessible share, handwashing provision and three worked examples — a 150 guest wedding, a 700 runner 5K and a 2,500 person street festival.
How Many Porta Potties Do You Need for an Event in Chicago?
Rental pages mentioned
More episodes
The Chicago Rule Most Contractors Miss
Episode 2 · 3:20. A Chicago job site answers to the federal construction sanitation standard and to the city plumbing code at once, and at some crew sizes the city one is tighter.
Where the Units Go at an Outdoor Event
Episode 3 · 3:28. Several Chicago bodies have a say in an outdoor event and none of them sets your restroom count. Where the number comes from, and where the units have to stand.
If this episode leaves a question it did not reach, call Flushbridge Porta Potty Prime on (872) 351-8063. We are open daily from 7:00 AM to 9:00 PM at 2003 W Fulton St #593, Chicago, IL 60612, and we would rather work the count through with you on the phone than have you order from a table.