What is the minimum size for a required exterior (egress) door?
The required egress door must be side-hinged and give at least 32 in clear width and 78 in clear height (IRC R311.2).
Each dwelling must have at least one side-hinged egress door that provides a clear opening of at least 32 inches wide and 78 inches high, measured with the door open 90 degrees.
Because the hinges and stop eat into the opening, a standard 3-foot-0-inch (36-inch) door is typically used to net the required 32 inches of clear width. Other doors in the home do not have to meet these minimums.
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