Hello - I've made plenty of cabinets. I am now making some fairly narrow ones (frameless) (about 14" inside width) and it made me think, "Can I make the doors, line them up with one of the sides, install the hinge plates, and THEN assemble the cabinet instead of trying to install the hinge plate working inside a narrow box. Clearly the trim to cover the edge of the plywood will have to be allowed for if not already on.
Cheers,
Scott