Thank you for the quick response Marc. You are (of course) correct about the height to the thread hold. I was thinking about my basement where I was dinged for 311.3.1 “Landings or finished floors at the required egress door shall be not more than 11/2 inches (38 mm) lower than the top of the threshold. Exception: The landing or floor on the exterior side shall be not more than 73/4 inches (196 mm) below the top of the threshold provided that the door does not swing over the landing or floor.” My problem there was on the inside not the out. I would appreciate your thoughts on another question please. If we step the right down to the driveway and have multiple landings with steps down to each landing (couple of steps and a run of 36”+ then couple of steps, etc.) does the landing break up the “run” of steps so that the delta of a maximin 3/8” difference between each step pertains precisely to those steps between two landings? Perhaps I worry to much and should leave it to the porch contractor. Thank you for your thoughts.
source https://www.inspectorsjournal.com/topic/18898-landings-versus-steps-for-extending-front-porch/?do=findComment&comment=172631
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