The americans with disabilities act ada of 1990 includes specific guidelines for the construction of accessible or ada compliant bathrooms.
Ada bathroom door size.
Doorways should be at least 32 inches wide with the door open at 90 degrees.
In a corner handicap stalls require a minimum of 60 x 60 compartment and is required with a minimum door size of 32 and the maximum size and more common is the 36 door.
To ensure compliance with ada door clearance requirements doors should open with minimal force and have handles that are easy to grab with one hand.
They can also serve as a general guide for safe user friendly accessible design when ada compliance is not required.
The ada americans with disabilities act also dictates the configuration of the fixtures in the room so they can be easily reached by wheelchair bound people.
Floor space guidelines the required minimum floor space for a handicapped accessible bathroom is 30 inches by 48 inches.
Doors in series shall swing either in the same direction or away from the space between the doors.
Minimum number at least 60 of public entrances must be accessible in new construction in addition to entrances directly serving tenancies parking facilities pedestrian tunnels and elevated walkways.
Multiple toilet stall layouts.
4 13 8 thresholds at doorways.
Two hinged doors in series.
This guide explains scoping and technical requirements for accessible entrances doors and gates in the ada standards.
An example of a single ada bathroom layout.