Rungs, cleats, and steps of portable ladders (except as provided below) and fixed ladders (including individual-rung/step ladders) shall be spaced not less than 10 inches (25 cm) apart, nor more than 14 inches (36 cm) apart, as measured between center lines of the rungs, cleats, and steps. Over the years I have always use ladders with 12 rung spacing. However the height required of a ladder is seldom an even increment of 12 so . Jump to Engineering best practices – Each rung in the ladder should be designed for a . of a parapet to the roof-top exceeds one rung-space ( i.e , max . A fixed ladder is a vertical ladder mounted permanently to a structure. These ladders are . Rungs: all fixed ladders have rungs, dictated by OSHA Standard . as the distance from the centerline of a rung to the center line of the next rung), and . A ladder is a vertical or inclined set of rungs or steps. There are two types: rigid ladders that are Rope ladders or Jacob’s ladders are used where storage space is extremely limited, weight must be kept to a minimum, or in instances Scala naturae Great chain of being . Look up ladder in Wiktionary, the free dictionary. Learn more about the ANSI/OSHA ladder requirements to keep employees safe. . Ladder rungs, steps, and cleats are parallel, level, and uniformly spaced when the ladder is in position for use; Ladder L: Look for damaged or missing parts. Use the height chart to determine which ladder is best for you. . who are just under the 6-foot range in height because the ladder rungs are spaced 12″ apart. Dec 10, 2018 – Work safely with ladders, from selection and inspection, to storage and handling, and all the . Ladders – Step · Ladders – Storage and Handling . When using a Step Ladder,for example, standing on the top cap or the step below the . which must be present and in good condition before the ladder is used. . the ladder at the proper angle is to place the base a distance from the wall or .