I made a mistake when I planned my bath. The door is going to hit the vanity before it opens 90 deg, I remember reading in the IRC something about the min deg but I cant find it now . if I change the swing the door will hit toilet instead of vanity . I will estimate the opening either way to be 80 deg . I have the required 21 " between the front of toilet and the front of vanity with a 24" door in the center of the path.