Section 408.10355. Landing platforms.

(1) A ladder used to ascend to a height of more than 20 feet, except on a chimney, without a ladder safety device shall have a landing platform for each 30 feet of ladder height; provided, however, that where a cage or well is not employed, a landing platform shall be provided for every 20 feet of height or fraction thereof. The requirements for a landing platform pursuant to this subrule and subrule (3) of this rule may be satisfied by complying with the provisions of R 408.10351(2).

(2)    A ladder section shall be offset from adjacent sections with a landing platform provided at each offset, except where the climbing space opening in  the platform is closed with a hinged part of the platform. A landing platform shall be as specified in this rule, and be not less than 24 inches by 30 inches (61 cm by 76 cm), and have at least the same strength as the ladder.

(3)   Where an employee has to step a distance of more than 12 inches from the center line of the rung of a ladder to the nearest edge of a structure or equipment, a landing platform shall be provided. The step-across distance shall be not less than 2 1/2 inches.

(4)   The side step from a fixed ladder to a platform shall be not less than 7 inches and not more than 12 inches measured from the side rail to the platform edge.

(5)   The side rail of an adjacent ladder shall be offset not less than 5 inches from the edge of a platform.

(6)   A landing platform shall be equipped with standard  railings   as specified in the general industry safety standards commission standard, Part 2. Floor and Wall Openings, Stairways and Skylights, being R 408.10201 to R 408.10241 of the Michigan Administrative Code arranged to give safe access to the ladder. A platform shall be not less than 24 inches in width and not less than 30 inches in length.

(7)   One rung of any section of a ladder shall be located at the level of the landing laterally served by the ladder. Where access to the landing is through the ladder, the same rung spacing as used on the ladder shall be used from the landing platform to the first rung below the landing.

History: 1979 AC; 1994 AACS.