If we can be of further assistance, please let us know. Scaffold planking must be able to support, without failure, its own weight and at least four times the intended load.451(a)(1) Solid sawn wood, fabricated planks, and fabricated platforms may be used as scaffold planks following the recommendations by the manufacturer or a lumber grading association or inspection agency. The maximum permissible spans for 2x10 inch or wider planks shall be as shown in the following table. ![]() Starrak's letter to us that 2"x10" selected structural scaffold plank used in conformance with the spans allowed in Table L-3 would satisfy our planking standards. .451 (a) (10) of our Construction Industry standards requires all planking to be Scaffold Grades, or equivalent, as recognized by approved grading rules for the species of wood used. The planks are 2 to 2 and a half feet high by 10 feet wide, with a rod and clipped at each end. It appears, based on a copy of a West Coast Lumber Inspection Bureau inspection certificate included with Mr. (1) Nominal thickness lumber not recommended for heavy duty use. 1926 Subpart L App A (1) (b) (ii) The maximum permissible span for 1¼ × 9-inch or wider wood plank of full thickness with a maximum intended load of 50 lb/ft. 451(a)(10) of our Construction Industry standards requires all planking to be Scaffold Grades, or equivalent, as recognized by approved grading rules for the species of wood used. Starrak, President George McQueston Company, Inc., located in Iron Horse Park, North Billerica, Massachusetts, requested that this office write to you concerning the Occupational Safety and Health Administration's (OSHA) requirements for scaffold plank.
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