As long as they're not easily confused, it is mostly a matter of choice.
21" minimum clearance in front of toilets, urinals, lavs and bidets.
24"
The minimum distance is 15 inches from the center of the closet shoe or toilet to the edge of the lav or vanity.
The 2003 UPC mandates 24 inches clearance from the front lip of the bowl to any obstruction. The 2003 IPC (International Plumbing Code) mandates 21" minimum from the front of the bowl to any obstruction.
Which code ? there are several out there
According to the 2006 International Plumbing Code, the following are the minimum dimentions for setting a toilet: From rear wall to center of drain line = 12 1/2 inches min. (General Standard Not Code) From side wall or side cabinet to center of drain or centerline of toilet = 15 inches min. From front of toilet to front wall or cabinet = 21 inches min. From front of toilet to Toilet dispenser = 7 to 9 inches. I hope you find this usefull. Terry
Code minimum 15" to center of toilet from side wall.
In the US there is no minimum distance. However, a local municipality can require a minimum distance by local code or ordinance.
the width required for building code space is a minimum of 30 inches.
According to the IPC code book it should be a minimum of 12 inches.
2T + 1
2T + 1
2t+1