(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 not more than 1 inch (2.5 cm) wide, except where the employer can demonstrate that a wider space is necessary (for example, to fit around uprights when side brackets are used to extend the width of the platform). Section 1926.451(b)(1) addresses the size of scaffold platforms: Each platform on all working levels of scaffolds shall be fully planked or decked between the front uprights and the guardrail supports as follows: Non-mandatory Appendix A to this subpart contains examples of criteria that will enable an employer to comply with paragraph (a). (6) Scaffolds shall be designed by a qualified person and shall be constructed and loaded in accordance with that design. I note that none of the technical resources referred to in Non-Mandatory Appendix A lists 2"-x-6" No.2 pine as scaffold grade planking.Īnswer: Section 1926.451(a) (Capacity) requires that: My first question relates to whether it is permissible to use 2"-x-6" No. Section 1926.451(b)(1) limits the permissible gap between the platform and the uprights to 9½ inches or less. The contractor has determined that based upon the anticipated load, the scaffold will meet the 4:1 capacity requirement in Subpart L. Viewed from beneath the platform, the configuration looks like this: Question 1a: Scenario: A scaffold has a 5'-x-7' frame that is decked with a 4-foot wide (5/8-inch thick) plywood sheet supported by three 2"-x-6" boards. 2 pine boards as a scaffold platform and the applicability of §1926.451(a) and §1926.451(f)(16) when erecting and dismantling scaffolds as follows: We have paraphrased your questions regarding use of 2"-x-6" No. 1 We are responding in a series of separate letters in response this is the third in that series. You have submitted nine letters to the Occupational Safety and Health Administration (OSHA) containing a number of questions on the construction scaffold standard (29 CFR Part 1926 Subpart L). 2 pine boards may be used as a scaffold platform whether §1926.451(a) and §1926.451(f)(16) are applicable when erecting and dismantling scaffolds.
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