what is minimum depth below mounting
In addition, a minimum 9 inches (230 mm) high toe clearance must be provided extending back toward the wall to a distance no more than 6 inches (150 mm) from the back wall. The toe clearance space must be free of equipment or obstructions. The maximum height of the lavatory is 34 inches (865 mm). The bottom edge of a wall-mounted mirror must be mounted no more than 40 inches (1015 mm) above the floor.