Interior Door Size Chart. To measure your existing door, you. The height for all passage doors must be a minimum of 80 inches and the standard width sizes for interior doors are 24”, 28”, 30”, 32” and 36”.
This is the minimum width required for a passage door. How to measure your existing standard interior door size. Again, measure in three points (this time to the left, centre and right) within the frame opening where the door will be.
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The minimum recommended door width to allow persons with disabilities’ to pass through is 36 inches. Customized sizes are available in a wide range of different designs. Made to measure internal doors come in a number of different sizes. Standard size for interior doors.
