Standard Interpretations - Table of Contents|
| Standard Number:||1926.450; 1926.450(b); 1926.451(a); 1926.451(a)(1); 1926.451(a)(6); 1926.451(b)(1)(i); 1926.451(f)(1); 1926.451(f)(16)|
|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.|
(b) Definitions.Title 29 CFR 1926.451(a) provides:
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Fabricated decking and planking means manufactured platforms made of wood (including laminated wood, and solid sawn wood planks), metal or other materials. [Emphasis added.]
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Platform means a work surface elevated above lower levels. Platforms can be constructed using individual wood planks, fabricated planks, fabricated decks, and fabricated platforms.
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Qualified means one who, by possession of a recognized degree, certificate, or professional standing, or who by extensive knowledge, training, and experience, has successfully demonstrated his/her ability to solve or resolve problems related to the subject matter, the work, or the project.
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(a) Capacity. (1) . . . [E]ach 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. [Emphasis added.]Title 29 CFR 1926.451(b)(1)(i) provides:
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(6) Scaffolds shall be designed by a qualified person and shall be constructed and loaded in accordance with that design. Non-mandatory Appendix A to this subpart contains examples of criteria that will enable an employer to comply with paragraph (a) of this section. [Emphasis added.]
(b) Scaffold platform construction. (1) Each platform on all working levels of scaffolds shall be fully planked or decked between the uprights and the guardrail supports as follows:Title 29 CFR 1926.451(f)(1) and (f)(16) provide:
(i) Each platform unit (e.g., scaffold plank, fabricated plank, fabricated deck, or fabricated platform) shall be installed so that the space between adjacent units and the space between the platform and the uprights is no more than 1 inch wide, except where the employer can demonstrate that a wider space is necessary . . . .
(f) Use. (1) Scaffolds and scaffold components shall not be loaded in excess of their maximum intended loads or rated capacities, whichever is less.Employers must ensure that scaffolds are designed, erected, and maintained in accordance with the applicable provisions of Subpart L of Part 1926. The requirements for scaffold platforms are written to allow flexibility of design by a qualified person, so long as they meet all the applicable criteria. Subpart L does not mandate a particular material to be used for a scaffold deck.
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(16) Platforms shall not deflect more than 1/60 of the span when loaded.
|Standard Interpretations - Table of Contents|
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