Standard Interpretations - Table of Contents|
| Standard Number:||1926.450(b); 1926.451; 1926.451(a)(1); 1926.451(a)(6); 1926.451(b); 1926.451(f)|
|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.|
Platforms can be constructed using individual wood planks, fabricated planks, fabricated decks, and fabricated platforms. [Emphasis added.]Section 1926.450(b) defines "Fabricated decking and planking" as:
manufactured platform[s] made of wood (including laminated wood, and solid sawn wood planks), metal or other materials. [Emphasis added.]General scaffold requirements are set forth in §1926.451. Significantly, §1926.451(a)(1) states:
Capacity. Except as provided in ..., 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.Section 1926.451(a)(6) continues:
Scaffolds shall be designed by a qualified person and shall be constructed in accordance with that design."Qualified" is defined in §1926.450(b) as:
... 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.Additional criteria specific to scaffold platform construction are included in §1926.451(b) and address, among other items, spacing between units, walkway width, platform attachment and finishes.
(16) Platforms shall not deflect more than 1/60 of the span when loaded.Thus, by their terms, these provisions allow for the use of plywood, a fabricated decking or planking material, in the construction of platforms used in scaffolds.
... materials quality is only one of several factors which must be considered when erecting a scaffold platform.Question (1)(b): A compliance officer stated that plywood could only be used if it was "OSHA-approved plywood" -- is that right (and is there such a type of plywood?)
(1) Made an initial determination that the scaffold, apart from the gap, meets the scaffold design, assembly and used criteria set forth in Subpart L.If you need additional information, please contact us by fax at: U.S. Department of Labor, OSHA, Directorate of Construction, Office of Construction Standards and Guidance, fax #202-693-1689. You can also contact us by mail at the above office, Room N3468, 200 Constitution Avenue, N.W., Washington, D.C. 20210, although there will be a delay in our receiving correspondence by mail.
(2) Uses the Table (or a similar type of reference tool) as a guide in designing the plywood patches that cover the gaps.
(3) Has the plywood nailed or otherwise secured to the scaffold planks to prevent uplift.
(4) Considers the effect of the weight of the plywood on the planking and on the ultimate allowable load.
(5) Confirms that the complete scaffold, as repaired with the plywood, meets the requirements of Subpart L.
|Standard Interpretations - Table of Contents|