Wisconsin · answered by Verika · verified against sources
When is a trench required to have protective systems like shoring?
A trench requires protective systems like shoring when it is greater than 5 feet (1.52 m) deep OR when a competent person’s examination indicates a potential cave-in, except in stable rock [6].
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Verika provides information with citations to help you find and understand the rules that apply to your work. It is not a substitute for professional engineering or legal judgment. Answer generated 2026-08-28; always confirm against the cited source for your project.
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