![]() ![]() 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. Outrigger scaffolds: Scaffolds and scaffold components must be designed by a registered professional engineer, and constructed and loaded per that design.(Non-mandatory) Appendix A to Subpart L of Part 1926-Scaffold Specifications.Fabricated frame scaffolds (tubular welded frame scaffolds, welded end frame scaffolds, walk through frame scaffolds) over 125 feet in height must be designed by a registered professional engineer, and constructed and loaded according to that design.Tube and Coupler scaffolds over 125 feet in height must be designed by a registered professional engineer, and must be constructed and loaded according to that design.Pole scaffolds over 60 feet in height must be designed by a registered professional engineer, and shall constructed and loaded according to that design.Non-mobile scaffolds must not be moved horizontally with workers on them, unless a registered professional engineer designed the scaffold specifically for the move. ![]()
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