![]() In general industry, section 1910.27(a) requires that "Scaffolds used in general industry must meet the requirements in 29 CFR part 1926, subpart L (Scaffolds)." Part of the maximum intended load will arise from the weight of persons, equipment, tools, and materials on the scaffold, and part will arise from other sources, such as wind. (Note that the maximum intended load, as defined under section 1926.450, does not include the weight of the scaffold.) Part of the load imposed on a bottom leg will arise from the weight of the part of the scaffold that the bottom leg supports. ![]() For example, on a multi-level scaffold, each bottom leg must be able to support the scaffold weight transmitted to that component, including the component weight itself, its own weight and four times the portion of the maximum intended load reasonably anticipated to be imposed on that leg, which include the maximum intended load transmitted to that component and the maximum intended load directly applied to that component. As this language makes clear, in applying section 1926.451(a)(1), each component of a scaffold must be able to support its own weight, plus 4 times the total maximum intended load on that component. The Agency intended that each component be adequate to meet the 4 to 1 factor, but only for the portion of the applied or transmitted to that component.Ħ1 FR 46026, 46033 (Aug. This provision is based on original standard § 1926.451(a)(7), which required that scaffolds and scaffold components "be capable of supporting without failure at least four times the maximum intended load." The final rule clearly provides that the 4 to 1 factor for a component applies only to the load which is actually applied or transmitted to that component, and not to the total load placed on the scaffold. When OSHA promulgated section 1926.451(a)(1), it clarified that the 4 to 1 factor corresponds to the total load applied to each scaffold component: Paragraph (a)(1) requires that each scaffold and scaffold component be capable of supporting, without failure, its own weight and at least 4 times the maximum intended load applied or transmitted to it. He total load of all persons, equipment, tools, materials, transmitted loads, and other loads reasonably anticipated to be applied to a scaffold or scaffold component at any time. on that component, in addition to the weight of the component.Įxcept as provided in paragraphs (a)(2), (a)(3), (a)(4), (a)(5), and (g) of this section, each scaffold and scaffold component shall be capable of supporting, without failure, its own weight and at least 4 times the maximum intended load applied or transmitted to it. Response: Under section 1926.451(a)(1), each component of a scaffold system must be able to support its own weight (the weight of the component itself, in addition to the portion of the scaffold’s weight that is transmitted to that component), and at least 4 times the maximum intended load transmitted to that component. 451(a)(1) is satisfied? How do the scaffolding requirements for general industry work differ from construction? Question: For scaffolds used in construction work, how is the weight of the scaffold taken into consideration in determining whether the 4 to 1 factor required by. This letter constitutes OSHA's interpretation of only the requirements discussed and may not be applicable to any question not delineated in your original correspondence. ![]() Your letter raises a specific question regarding OSHA's standards for scaffolds. Thank you for your letter to OSHA's Directorate of Construction dated November 7, 2011.
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