Fixed Ladder Rung Width

All wood parts of fixed ladders shall meet the requirements of 1910 25 b.

Fixed ladder rung width.

Rungs and cleats ladder minimum diameter 3 4 inch metal rungs. As seen in the picture below featuring new ladder system we recommend a wider climbing surface to accommodate a ladder lifeline system and to make the ladder easier to climb. Individual metal rungs embedded in concrete pits minimum 1 inch diameter. For fixed ladders consisting of wood side rails and wood rungs or cleats used at a pitch in the range 75 degrees to 90 degrees and intended for use by no more than one person per section single ladders as described in 1910 25 c 3 ii are acceptable.

The international mechanical code 2018 306 5 4 calls for a minimum of 18 between rails. 1917 118 e 2 when a well or cage is used ladders with length of climb exceeding 30 feet 9 14 m shall comply with the following provisions. First rung from the bottom can be up to 14 inches minimum clear width of rungs or cleats is 16 inches. All fixed ladders have rungs dictated by osha standard 1910 27 b 1 of no more than 12 300 mm on center measured as the distance from the centerline of a rung to the center line of the next rung and at 16 410 mm clear width.

10 minimum and 14 maximum spacing from centerline to centerline of rungs. The minimum clear width of rungs on fixed ladders shall be 16. The distance between rungs cleats and steps does not exceed 12 inches and is uniform throughout the length of the ladder.