![]() ![]() Scaffold Planks That Exceed OSHA Regulations In addition to the E rating of planks, MSR also provides a rating for flatwise bending design (F), ensuring a lower variability in bending from one plank to the next. Though our solid sawn wood planks must meet certain visual grading requirements, mechanical stress-rating equipment provides a more accurate measure of their modulus of elasticity (E). provides an upgraded type of machine stress rated (MSR) plank that meets and exceeds industry and regulatory demands. ![]() Unlike the typical DI65 (dense industrial 65) scaffold planks, Kennison Forest Products, Inc. Planking is critical for safe conditions on a scaffold and properly supports workers and their equipment. All wood bearers shall be reinforced with 3⁄16 x 2 inch steel strip, or the equivalent, secured to the lower edges for the entire length of the bearer.Kennison Forest Products is a distributor of 2200F MSR 1.8E Solid Sawn Scaffold Plank. NOTE: All members except planking are used on edge. Maximum vertical spacing of horizontal members Note: Platform units used to make scaffold platforms intended for light-duty use shall be capable of supporting at least 25 pounds per square foot applied uniformly over the entire unit-span area, or a 250-pound point load placed on the unit at the center of the span, whichever load produces the greater shear force. 250 pounds placed at the center of the span and 250 pounds placed 18 inches to the left and right of the center of the span (total 750 pounds).250 pounds placed 18 inches to the left and right of the center of the span (total 500 pounds).250 pounds placed at the center of the span (total 250 pounds).75 pounds per square foot applied uniformly over the entire span area.50 pounds per square foot applied uniformly over the entire span area.25 pounds per square foot applied uniformly over the entire span area.Masons' multi-point adjustable suspension scaffolds.įabricated planks: Maximum intended load being calculated Rated load.Stonesetters' multi-point adjustable suspension scaffolds.Two-point adjustable suspension scaffolds.Single-point adjustable suspension scaffolds.Step, platform and trestle ladder scaffolds.Form scaffolds and carpenters' bracket scaffolds.Plasterers', decorators' and large area scaffolds.Scaffold components which are not selected and loaded in accordance with this Appendix, and components for which no specific guidelines or tables are given in this appendix (e.g., joints, ties, components for wood pole scaffolds more than 60 feet in height, components for heavy-duty horse scaffolds, components made with other materials, and components with other dimensions, etc.) must be designed and constructed in accordance with the capacity requirements of § 1926.451(a), and loaded in accordance with § 1926.451(d)(1). However, the guidelines do not provide all the information necessary to build a complete system, and the employer is still responsible for designing and assembling these components in such a way that the completed system will meet the requirements of § 1926.451(a). An employer may use these guidelines and tables as a starting point for designing scaffold systems. This appendix provides non-mandatory guidelines to assist employers in complying with the requirements of subpart L of this part. (Non-mandatory) Appendix A to Subpart L of Part 1926-Scaffold Specifications
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