In 1983, OSHA explained that, for the purposes of the scaffold height-to-base width ratio, the Agency uses the "total height" in relationship to the smaller base dimension. (1) Supported scaffolds with a height to base width ( including outrigger supports, if used) ratio of more than four to one shall be restrained from tipping by guying, tying, bracing, or equivalent means. Section 1926.451(c)(1) states: Criteria for supported scaffolds. However, where appropriate, we try to give some guidance to employers to help them assess whether products are appropriate to use and provide OSHA-required protection. ![]() In addition, the variable working conditions at jobsites and possible alterations or misapplications of an otherwise safe product could easily create a hazardous condition beyond the control of the manufacturer. Question: Do the designs that I have submitted regarding "lock-pin" mobile scaffolds meet applicable OSHA construction requirements for height-to-base width ratios for supported scaffolds? 1įirst, please note that OSHA neither approves nor endorses products. I apologize for the delay in our completing this letter. Your inquiry concerns the adequacy of outrigger designs for your "lock-pin" mobile scaffolds used in construction. ![]() This is in response to your December 30, 2002, letter to the Occupational Safety and Health Administration (OSHA), as well as several conversations with members of my staff. Re: Whether a mobile scaffold outrigger design meets the requirements of.
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