alternating tread stairs dimensions
R311711 Alternating tread devices. The rise to the next alternating tread surface should not be more than 8 inches 203 mm.
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Download the OSHA cheatsheet.
. As per local amendment Alternating tread stairways may serve as an exit from an area not to exceed 200 square feet. Academiaedu is a platform for academics to share research papers. As an employer it is your responsibility to ensure all workers have adequate fall protection and falling object protection including handrails stair rail systems and guardrail systems according to.
ApplicationThis section covers all stairways including standard spiral ship and alternating tread-type stairs except for articulated stairs stairs that change pitch due to change in height at the point of attachment such as those serving floating roof tanks stairs on scaffolds stairs designed into machines or equipment and stairs on self-propelled motorized equipment. Alternating tread stairways shall have a minimum tread depth of 105 inches 276 mm. All ErectaStep stairs comply with OSHA standard 191025 which covers all stairways including standard spiral ship and alternating tread-type stairs.
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