Just interested, sometimes that can help define a room type- I still think those are dressing rooms. Any natural lighting(windows, skylights) or receptacles? Have you asked the AHJ yet?
Typically the area is defined by what it is called on the approved prints.
If is says dressing room than it is, if it says closet it is.
No group hugs but I am not 'heated' I am just trying to put facts out not assumptions.
Bob Badger Construction & Maintenance Electrician Massachusetts
