Standard Interpretations - Table of Contents|
| Standard Number:||1926.451; 1926.451(a); 1926.451(a)(1); 1926.451(a)(12) ; 1926.451(b); 1926.451(b)(5); 1926.451(b)(5)(i); 1926.451(b)(5)(ii); 1926.451(c)(1)(iii)|
|OSHA requirements are set by statute, standards and regulations. Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations. This letter constitutes OSHA's interpretation of the requirements discussed. Note that our enforcement guidance may be affected by changes to OSHA rules. Also, from time to time we update our guidance in response to new information. To keep apprised of such developments, you can consult OSHA's website at http://www.osha.gov.|
(1) Except 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.In addition, §1926.451(b) Scaffold platform construction contains the following limitations relative to cantilevered portions of platforms:
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(12) Scaffolds shall be designed by a qualified person and shall be constructed and loaded in accordance with that design.
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* * *One of the requirements for scaffolds with eccentric loads is §1926.451(c)(1)(iii):
(5)(i) Each end of a platform 10 feet or less in length shall not extend over its support more than 12 inches (30 cm) unless the platform is designed and installed so that the cantilevered portion of the platform is able to support employees and/or materials without tipping, or has guardrails which block employee access to the cantilevered end.
(ii) Each platform greater than 10 feet in length shall not extend over its support more than 18 inches (46 cm), unless it is designed and installed so that the cantilevered portion of the platform is able to support employees without tipping, or has guardrails which block employee access to the cantilevered end.
Ties, guys, braces, or outriggers shall be used to prevent the tipping of supported scaffolds in all circumstances where an eccentric load, such as a cantilevered work platform, is applied or is transmitted to the scaffold. [Emphasis added.]Thus, in a scenario involving an eccentric load on a cantilevered portion of a platform, the qualified person's design must conform to this criteria. The use of the masonry blocks as what appear to be improvised counterweights indicates that, in the scenario you describe, the scaffold has not been adequately secured against tipping in accordance with §1926.451(c)(1)(iii).
|Standard Interpretations - Table of Contents|
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