Here's one I can't find. Of course we know that the maximum mounting height of a toilet room mirror is 40" AFF to the reflecting surface. Is there a minimum width? I'm not the AHJ but a contractor wants to use a custom shape where the bottom of the mirror "steps" up so the lowest few steps are within the 40" but the upper steps are higher resulting in about a 6" wide area on each side within the required range. Intuitively, this seem wrong but I can't find anything in the code that prohibits it. Thanks.