Mich. Admin. Code R. 408.10651 - Stairs
Rule 651.
(1)
Stairs serving as a required exit shall comply with the requirements of this
part as to construction specifications and details, and of table 3.
**** INSERT MISSING TABLE OR CHART - SEE ORIGINAL MANUSCRIPT ****
(2) A
variation in the width of tread or height of risers in any flight shall not
exceed 3/16 inch.
(3) A stair and a
platform or landing used in connection therewith, in a building 4 stories or
more in height, shall be of noncombustible construction throughout, except for
handrails.
(4) A stair, platform,
landing, balcony, and stair hallway floor shall be designed to carry a load of
100 pounds per square foot, or a concentrated load of 300 pounds so located as
to produce maximum stress conditions.
(5) Where the material of stair treads and
landings is such as to involve danger of slipping, nonslip material shall be
provided on the tread surface.
(6)
Stairways and intermediate landings shall continue with no decrease in width
along the direction of exit travel.
(7) Monumental stairs, either inside or
outside, may be accepted as required exits if all requirements for exit stairs
are complied with, except that curved stairs may be accepted with a radius of
25 feet or more at the inner edges.
Notes
State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.
No prior version found.