How Many Portable Toilets Will I Need for My Event?

There’s nothing worse than having too few restrooms at an event. Long lines for the bathroom can leave even the cheeriest guests feeling disgruntled and make your event memorable for all the wrong reasons. However, you also don’t want to over-book restrooms, spending way more money than needed. So what’s the solution? A thorough event planning process! If you understand the details well, estimating the correct number of restrooms is much easier. To get you started, we have developed a list of areas to consider when planning portable restrooms for an event.

Event Logistics

The number of porta-potty units you need is contingent upon two factors:  the number of guests attending and the length of the event. You will need to order additional units for large events or parties, lengthy events (think half-day or longer), or events where food and beverages will be served.

ADA Compliant Units

ADA-compliant restrooms provide handicapped bathroom accessibility. Depending on the nature of your event and guest list, you should order more of these bathroom units than the minimum requirement. The extra space within these larger units is great for families with small children or guests needing a quick outfit change.

Specialty Units and Trailers

Our luxury restroom trailers are perfect for upscale events or events where you want to offer guests extra amenities. These trailers are climate-controlled and have running water, flushing toilets, and elegant finishes such as wooden cabinetry and well-lit mirrors.

Hand-washing Stations

Standalone hand-washing stations allow guests to wash their hands quickly and efficiently after exiting portable units. These stations help to prevent the spread of germs, meet public safety regulations, and help guests to feel more comfortable. Our team can help you determine the number of hand-washing stations you’ll need per number of portable restrooms and guests.  

Porta-Potty Calculator

Did you know that we have a porta-potty calculator? Yep, that’s right – you can figure out exactly how many portable restrooms you will need for an event based on the number of guests. Click here to start number crunching, or if you are tired of doing potty math, call us! We are happy to create a custom restroom plan and quote. 


Correct potty placement ensures that your guests won’t need to search for a restroom or endure long waits at one lone bathroom. Our Standard Units are great for sporting events, farms, and job sites, while Luxury Restroom Trailers are an excellent solution for sizable parties and gatherings. Whether you’re organizing a family celebration or a music festival, Kerkstra will help you create the perfect event!

Kerkstra Portable Restroom Service Inc. provides portable restroom service across Michigan and luxury restroom trailers for all the states surrounding the Great Lakes. Take a look at our mobile restroom trailers and request a quote today!