The tread shall be projected such that the total of the tread depth plus the nosing projection is not less than 8 1 / 2 inches (216 mm). Treads shall have a depth of not less than 5 inches (127 mm). R311.7.12.1 Treads of Ships Ladders.
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Work4Denver (Contract Administration) Sub-menuBuilding Code Resources. Size Name: 80' - 85' H 80' - 85' H Updated other options based on. Full content visible, double tap to read brief content. Abandoned & Confiscated Vehicle Online Auction60' (5’0) Diameter Spiral Stair Kit - IRC Code Compliant (80' - 85' H) Brand: Duvinage Brief content visible, double tap to read full content. Codes to be accurate pictorial material void of editorial comment to aid in.
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