How Many Portable Toilets Do You Need for a Construction Site?

If you're managing a construction site in Nashville or anywhere across Middle Tennessee, one of the first logistics to sort out is sanitation. Not only does providing clean and accessible portable toilets keep your crew comfortable—it’s also a legal requirement.

So, how many portable toilets do you actually need?

Start with OSHA’s Minimum Guidelines

According to OSHA (Occupational Safety and Health Administration), the rule of thumb is:

• 1 portable toilet for every 20 workers

• If you have 21–40 workers, you’ll need 2 units

• 41–60 workers? That’s 3 units—and so on

These are minimums, but actual jobsite needs usually go beyond that.

Real-World Construction Site Considerations

Beyond OSHA compliance, other factors can impact how many units you’ll need:

• Shift length: Longer shifts mean higher usage

• Size of the site: Spread-out or multi-floor sites may require additional units

• Female crew members: Consider ADA-compliant or gender-specific units for privacy

• Handwashing access: Don’t forget hygiene—add sinks or handwashing stations

Eagle Site Services’ Recommendation

We suggest 1 portable toilet per 10 workers for the best balance of convenience and cleanliness. This keeps wait times low and morale high, especially on fast-paced or long-duration projects.

We also offer flexible servicing schedules—weekly is standard, but we can provide more frequent cleanings based on your site’s needs.

Need Help Planning?

At Eagle Site Services, we specialize in portable restrooms, handwashing stations, and water/waste tanks for temporary office trailers and construction sites throughout Middle Tennessee.

Contact us today for a fast, free quote—we’ll help you get exactly what you need, right when you need it.