• Contact Information

    Jefferson County Building Safety


    Monday - Friday
    7:30 a.m. - 5:30 p.m.

    Contact Us

    100 Jefferson County Parkway
    Suite 3540
    Admin and Courts Facility
    Golden, CO 80419-3540

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  • Landings


    From the 2015 International Residential Code unless otherwise indicated. 

    R311.7.6 - Landings for Stairways

    There shall be a floor or landing at the top and bottom of each stairway. The width perpendicular to the direction of travel shall be not less than the width of the flight served.  Landings of shape other than square or rectangular shall be permitted provided the depth at the walk line and the total area is not less than that of a quarter circle with a radius equal to the required landing width. Where the stairway has a straight run, the minimum depth in the direction of travel shall be not less than 36 inches (914 mm). 

  • 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.  


Last Updated: 1-13-2016