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.
Front door width code.
Code requirements for exterior doors are covered in chapter 10 of the ibc.
In computing the exit width required the net dimension of the exitway shall be used.
Entry doors are usually 36 inches wide.
While a door width of 36 inches is oversized for an interior door it s the standard size for front doors the standard height remains the same however.
Standard entry door widths.
When installed in exit doorways exit doors shall be capable of opening at least 90 degrees and shall be mounted so that the clear width of the exitway is no less than 32 inches.
This chapter provides guidelines on door height and width based on the function of the structure.