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Fixed ladders consist of the following components: Rungs: 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.
An extension ladder. A ladder is a vertical or inclined set of rungs or steps commonly used for climbing or descending. There are two types: rigid ladders that are self-supporting or that may be leaned against a vertical surface such as a wall, and rollable ladders, such as those made of rope or aluminium, that may be hung from the top.
Werner Co. is a privately owned company involved with the manufacturing and distribution of aluminum and fiberglass ladders, light duty construction equipment, fall protection equipment, and similar products. Werner Co. is headquartered in Itasca, Illinois.
A custom ladder chassis with outriggers was built by "Electric Vehicle Engineering Co." (EVE) of Boston, Massachusetts. Configured for front wheel drive , the car's running gear was from Saab. The body was a Fiberfab shell, and a photo from a newspaper article on the FCL site describes it as an Avenger GT.
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The ladders are made by threading and fixing a series of hardwood, machined steps, each not more than 400 mm × 115 mm × 25 mm (15.75 in × 4.53 in × 0.98 in), onto two pairs of minimum 18 mm (0.71 in) diameter manila ropes, and binding each step to the ropes at 310 mm (12 in) (+- 5 mm, 0.20 in) intervals.
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