Always Check the vertical clearance. Often we have Architectural drawings come in with drawers noted as "file drawer". They also have a clear vertical of 9 5/8". That's fine if your hanging system leaves 0.00" between the hanging folder bottom edge and the drawer bottom, and you don't put anything in the folders that extends above them. We always use 11 1/4" as a standard from interior drawer bottom to bottom of the drawer above or face frame rail depending on the cabinet type. I hate it when manila folders poking up above the hanging folder go pbpbpbpbpbpbpbt against the dust panel as you push the drawer in.
