— Mark D. – USA
ANSWER: Per the 2010 ADA standards section 604.8.1.1 Size, the minimum size for a toilet compartment for wall hung fixture is 60” wide measure perpendicular to the side wall and 56” deep minimum measured perpendicular to the rear wall. The minimum size for a toilet compartment for a floor mounted fixture is 60” wide measure perpendicular to the side wall and 59” deep minimum measured perpendicular to the rear wall.
– Brad