How Many Portable Restrooms Does Your Wisconsin Construction Site Need?
Getting the restroom count right on a construction site keeps your crew comfortable, your site compliant, and your project moving. Too few units and everyone slows down. The good news is the math is simpler than you might think. Here is how to size it.
Start With Your Headcount
The first number that matters is how many workers are on site. The general industry standard is one portable restroom for every ten workers on a standard 40-hour week. So, a crew of ten working five eight-hour days is well covered by a single unit with weekly servicing.
As your crew grows, scale from there. Twenty workers, two units. Thirty workers, three. Holding that ratio steady is what keeps wait times short and your site running smoothly. (Not sure which units fit your site? See our full lineup of construction portable restrooms and accessories.
Factor In Hours and Project Length
Headcount is only half the picture. How long your crew is on site, both each day and across the whole project, changes the equation.
A short workday is one thing. But once your site runs beyond 40 hours a week, whether that means extended shifts, weekend work, or around-the-clock operation, demand on each unit climbs fast. That usually calls for adding units, increasing servicing frequency, or both. A unit that is perfect for a 40-hour week will not hold up to nonstop use without more frequent cleaning.
The fix is straightforward: tell us your actual schedule. The more we know about your hours and timeline, the better we can match the setup to your site instead of guessing. Request a quote and we will size it with you.
Stay Compliant
Beyond crew comfort, restroom requirements are tied to local regulations. Planning your setup around both your headcount and your hours keeps you on the right side of those rules and saves you from scrambling mid-project. A little planning up front means one less thing to manage once the work starts.
We Will Help You Get the Numbers Right
Every site is different, and you should not have to work this out on your own. Arnold's has kept southeastern Wisconsin construction sites clean and compliant since 1992. Tell us your crew size, your hours, and your timeline, and we will recommend exactly what you need.
Planning something other than a job site? We break down the math for events too: How Many Porta Potties Do You Need for a Special Event in Wisconsin?