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Free Sizing Tool

How Many Porta Potties Do You Need?

Answer four quick questions and we’ll estimate the right number of restrooms — including ADA units and handwashing stations — for your Sacramento event or job site.

A planning estimate based on common industry ratios — about one unit per 50 guests for a short event, or one per 10 workers on a job site — adjusted for duration and alcohol. For an exact recommendation, just call.

How the estimate works

For events, we start at roughly one restroom per 50 guests for a gathering up to four hours, then scale up for longer events and add about 30% when alcohol is served. For construction and long-term sites, we use about one unit per 10 workers for a 40-hour week, in line with OSHA guidance.

Every estimate also flags at least one ADA-accessible unit for compliance and recommends handwashing stations for hygiene — two things most calculators leave out. Not sure which unit type to pick? Compare all units side by side.

Frequently Asked Questions

How many porta potties do I need for an event?
A common starting point is one unit per 50 guests for an event up to four hours. Longer events, bigger crowds, and serving alcohol all raise the number — the calculator above adjusts for each of those.
How many porta potties for a construction site?
Plan for about one unit per 10 workers for a standard 40-hour week, in line with OSHA guidance. Add units or increase service frequency for larger crews or longer shifts.
Do I need to add ADA units and handwashing stations?
Yes — at least one ADA-accessible unit is recommended for compliance at most public events, and a handwashing station any time food or alcohol is served. The calculator includes both in its estimate.
Does serving alcohol change how many units I need?
It does. Guests use restrooms more often when alcohol is served, so we add roughly 30% more capacity for those events to keep lines short.

Want an exact recommendation?

Call and we’ll size your order — units, ADA, and handwashing — in minutes.

Call (916) 295-6959
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