Test Your OSHA Knowledge - Extending Ladder Three Feet Above the Landing
Wednesday, December 29th, 2010
Scenario: You are the safety manager of a construction company. Your employer has purchased a Walk-Through Railing System to attach to the ends of your portable extension ladders. The device is designed to allow a person to walk through the top of a ladder onto a rooftop or landing instead of having to step around the ladder. The Walk-Through consists of two components that attach over the top of each side rail of the ladder. In using these extensions, your employees are no longer extending the ladder three feet above the landing they are getting on to.
You are afraid your employees may now be violating 29crf1926.1053(b)(1) which states:
“When portable ladders are used for access to an upper landing surface, the ladder side rails shall extend at least 3 feet above the upper landing surface to which the ladder is used to gain access; or, when such an extension is not possible because of the ladder’s length, then the ladder shall be secured at its top to a rigid support that will not deflect, and a grasping device, such as a grabrail, shall be provided to assist employees in mounting and dismounting the ladder. In no case shall the extension be such that ladder deflection under a load would, by itself, cause the ladder to slip off its support.”
You are concerned OSHA may say that due to the fact your ladder is capable of being extended the additional three feet that you must extend it. Your employer and employees argue that by doing so you create additional hazards and defeat the whole purpose of the walk-through device.
Who is right?
Answer: Your employer and employees would be correct. According to a 2005 letter of interpretation OSHA states:
“Thus, a portable ladder with such extensions attached, and used as described above, would have its side rails extending at least 3 feet above the upper landing surface. Therefore, use of the ladder and the extensions in this manner would be in accordance with the 3-foot requirement in §1926.1053(b)(1).”
To see the whole letter go to: http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=INTERPRETATIONS&p_id=25177


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