ADA Porta Potty Requirements for Events
If your event is open to the public, accessible sanitation is not a courtesy. It is the piece most often left off a booking, and the one that draws a complaint.
What actually makes a unit ADA
Not a bigger box with a ramp bolted on. The 2010 ADA Standards set the geometry: a ground-level entry rather than a step, a door wide enough to pass through in a wheelchair, clear floor space to turn inside, and grab bars positioned so somebody can transfer from a chair. A standard cabin with a ramp on the front meets none of that, and it is the substitution most likely to turn up when a yard is short on the day.
The footprint is meaningfully larger than a standard unit, so an accessible unit needs its own space in the site plan rather than being squeezed into the same row. If you are drawing a layout, draw it at the right size or it will not fit when the truck arrives.
Placement is half of it
An accessible unit needs an accessible approach, and this is the part that gets missed. A unit sited on grass, gravel or a slope is not usable by the person it was rented for, whatever the spec sheet says. It has to sit on the accessible route itself, on firm level ground, reachable without crossing turf, a cable run or a curb.
Left unspecified, this gets decided on the day by whoever is driving the truck, who is thinking about where the vehicle fits rather than where a wheelchair goes. Mark the spot on the site plan and say it on the phone when you book.
How many, and whose job it is
Common industry guidance is 5% of your total units with a minimum of one. For most events that works out at one, and one is exactly what people forget.
Responsibility sits with the organizer rather than the rental company. The yard supplies what you order, so ordering enough is your call, and so is siting it somewhere usable. That division surprises people after the fact, which is the wrong time to learn it.
Book the accessible unit first
ADA units tend to run out before anything else, and nobody publishes how many any one yard holds against its fleet of standard cabins, which is exactly why it is the unit to ask about by name. On a summer Saturday the accessible unit is the constraint on the whole order. Reverse the usual instinct and book it before the standard ones rather than adding it at the end if the budget stretches.
1094 of the 1,976 independent companies we checked say they rent ADA units, about 55%. That is better coverage than most people expect, but it is coverage rather than stock: a company that rents them may still have none left for your date.
Find companies with ADA units →
What to ask when you book
Four questions, and the first two are the ones that catch a substitution before it happens.
Is it a purpose-built accessible unit or a standard cabin with a ramp? Ask it plainly. The answer is not always volunteered and the difference is the whole point.
What are the door width and internal turning space? A yard that knows its stock will answer immediately. One that hesitates is describing a unit it has not looked at.
Where will the driver put it, and can I mark that spot? This is where the accessible route gets agreed rather than assumed.
What happens if it is unavailable on the day? Get the fallback named in advance, because the fallback offered on the morning is the ramp-on-a-standard-cabin.
See which companies rent accessible units, by state.
Common questions
What makes a porta potty ADA compliant?
How many ADA units does an event need?
Who is responsible for providing accessible units?
Figures on this page come from the Porta Potty Finder. How the data is collected.