R318.7.12.1 Treads of alternating tread devices

Alternating tread devices shall have a tread depth of not [...]

By |2026-03-30T11:01:38-04:00March 18, 2026|Alternating Tread Devices, Stairways, Treads of Alternating Tread Devices, VI CODE 2024, VI CODE APP|Comments Off on R318.7.12.1 Treads of alternating tread devices
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