Crane wind limits and stop-work thresholds

Working wind thresholds for mobile crane picks: the common chart convention, the stop-work speed, and the high-sail-area derate, with the basis for each.

This is the exact table the Crane Cost Estimator runs on. Cite it as: Antero Trail, "Crane wind limits and stop-work thresholds", anterotrail.com/tools/reference/crane-wind-limits. Primary sources are listed with each value and at the bottom of the page.

Wind thresholds for suspended-load crane work, used by the sign_antenna_set scenario's sail-area warning (PRP-CALC-2). These are INDUSTRY GUIDANCE (stated-default), not a single manufacturer's wind chart - ASME B30.5 / the crane's own load chart governs the actual limit. Editable.

stop work wind MPH

industry-guidance

value
32

typical manufacturer max MPH

industry-guidance

value
20

high sail area derate MPH

industry-guidance

value
8

engineered lift tip height FT

Above this tip height the sizing table cannot confirm the pick (most rows publish no max tip height, per crane_capacity_classes.json) - the narrative flags engineered-lift-plan territory rather than trusting the core to range-limit. Editable.

value
120
basis
stated-default

All sources on this page

These calculators produce planning estimates from published public rate schedules. They are not a formal quote. Confirm equipment, access, and pricing with a licensed operator or rental yard before you rely on any number for an estimate.