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Re: Stairway bottom landing
That's not a landing, but rather a large tread.
2006 IRC R311.5.4 Landings for stairways: There shall be a floor or landing at the top and bottom of each stairway.
Exception: A floor or landing is not required at the top of an interior flight of stairs, including stairs in an enclosed garage, provided a door does not swing over the stairs.
A flight of stairs shall not have a vertical rise larger than 12 feet (3658 mm) between floor levels or landings.
The width of each landing shall not be less than the width of the stairway served. Every landing shall have a minimum dimension of 36 inches (914 mm) measured in the direction
of travel. (Highlighted for emphasis)
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