But a door may not swing into the clearance of a plumbing fixture or any fixture within the toilet room. This ensures that if a person in a wheelchair is washing their hands at a lavatory near the door that swings into the toilet room, that person will not get hit by the door.
603.2.3 Door Swing. Doors shall not swing into the clear floor space or clearance required for any fixture. Doors shall be permitted to swing into the required turning space.
There are a couple of exceptions. If the the toilet room is a private office or a single user restroom, it is assumed that the person inside will lock the door behind them and therefore the chances of getting hit by a door while using a fixture that is located within the door swing is unlikely.
EXCEPTIONS:
1. Doors to a toilet room or bathing room for a single occupant accessed only through a private office and not for common use or public use shall be permitted to swing into the clear floor space or clearance provided the swing of the door can be reversed to comply with 603.2.3.
2. Where the toilet room or bathing room is for individual use and a clear floor space complying with 305.3 is provided within the room beyond the arc of the door swing, doors shall be permitted to swing into the clear floor space or clearance required for any fixture.
In addition, there might be two doors within a restroom. It could be a second entry door, but also a toilet compartment door. The clearances for each door may overlap each other, but also they may overlap the turning space. As long as they meet the maneuvering requirements, they may also overlap fixtures.
The plan above shows a swing door and a sliding door in the same restroom. The rules for sliding doors are the same as a swing door.
In a toilet compartment, the door swing cannot overlap the floor clearance of the water closet. If the door swings into the clearance of a water closet inside the compartment will impede maneuvering inside the compartment.
604.8.1.1 Size. Wheelchair accessible compartments shall be 60 inches (1525 mm) wide minimum measured perpendicular to the side wall, and 56 inches (1420 mm) deep minimum for wall hung water closets and 59 inches (1500 mm) deep minimum for floor mounted water closets measured perpendicular to the rear wall
604.8.1.2 Doors. .......Toilet compartment doors shall not swing into the minimum required compartment area
The clearance of the water closet in a compartment should be either 56" for a wall hung or 59" if it's floor mounted. The door can swing out and can also swing in, but the door may not swing into that minimum clearance.
The toilet compartment door shown in the drawing above is swinging into the clearance of the lavatory. Toilet compartment doors must also meet the requirements for section 404 for maneuvering, but there is no restriction to swinging the door into the facing fixtures. That requirements is for the entry door to the toilet room.
