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I haven't kept up with building codes in a number of years, but believe it was 36" minimum landing at bottom or top of stairs. You need to check out the National Building Code to verify. You can Google this information online,

check for a copy at your local library or make a call to your local building department.



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Located a 2009 edition of the IRC-International

Residential Code on Stairways. You still need to verify that this information is current and suggest you contact your local building department.

STAIRWAYS

46. LANDINGS. Section R311 IRC 2009

R311.7.5 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.

R311.3 Floors and landings at exterior doors.

There shall be a landing or floor on each side of each exterior door. The width of each landing shall not be less than the door served. Every landing shall have a minimum dimension of 36 inches...






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12y ago

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