Rental guide · Updated 2026-11-06
ADA Shower and Restroom Trailers: The 2010 ADA Standards' 5 Percent Rule for Portable Units
What the 2010 ADA Standards say about clusters of portable toilet and bathing units, and which ADA combos fit. Event organizers, facility managers, and contractors can use it to work out how many accessible units a cluster needs, what an accessible stall includes, and how the access ramp, delivery, and setup are planned for an ADA shower-restroom combo trailer rental.
Key points
- In a cluster of single-user portable toilet or bathing units, 5 percent must meet the accessibility requirements.
- Our ADA combos pair an accessible shower-restroom stall with 3 or 8 standard stalls.
- An accessible unit needs an accessible route to its door: plan the ramp with the trailer.
Events, shelters, and job sites that bring in portable showers and restrooms often ask how many need to be accessible. The 2010 ADA Standards for Accessible Design answer it for clusters of portable units.
The rule
Section 213.2, Exception 3: “Where multiple single user portable toilet or bathing units are clustered at a single location, no more than 5 percent of the toilet units and bathing units at each cluster shall be required to comply with 603.” Section 603 sets the requirements for accessible toilet and bathing rooms. In practice, plan accessible units for 5 percent of each cluster.
Which trailer fits
- Luxury Shower-Restroom Combination Trailer (3 Individual Stalls + 1 ADA): a smaller cluster, with one accessible stall beside three standard ones.
- Luxury Shower-Restroom Combination Trailer (8 Individual Stalls + 1 ADA): a larger cluster, one accessible stall beside eight standard ones.
An accessible stall only works if people can reach it. Plan an access ramp with the order; a ramp takes about 4 to 6 hours to set, so build it into the delivery schedule. Your venue, building official, or event permit may add requirements of its own; we size to whichever is stricter.
Sources
- 2010 ADA Standards for Accessible Design: Section 213.2, Exception 3: in a cluster of single-user portable toilet or bathing units, 5 percent must comply with the accessibility requirements.
- OSHA 1910.141: Sanitation (general industry): Where a standard requires showers: one shower for each 10 employees of each sex, hot and cold water, soap, and individual towels.
Links checked 2026-11-06. Figures quoted above appear on the linked pages.
