WHAT SIZE HAIL DAMAGES A CAR?
Quarter size — one inch — is the practical threshold where steel hoods, roofs and decklids start collecting dents; soft aluminum panels can mark at penny size. Golf-ball (1.75″) and hen-egg (2.00″) stones reach vertical panels and split trim; at tennis-ball size and up (2.50″+), windshields crack and paint breaks on impact. And duration multiplies everything — several minutes of quarters can out-damage one burst of golf balls.
The Longer Answer
THE SIZE LADDER, PANEL BY PANEL
Hail damage scales with three things — stone size, what the panel is made of, and how long the stones kept coming. Pea and dime hail (under 0.75″) usually leaves steel untouched, though a long soak of it can freckle soft aluminum. Penny to nickel (0.75–0.9″) is the gray zone: steel typically shrugs it off, aluminum hoods and tailgates — standard on modern F-150s, Silverados and Sierras — can take shallow marks worth a raking-light check. Quarter size (1.00″) is where the National Weather Service’s severe threshold and the body shop’s reality agree: horizontal steel starts denting, reliably.
From there the ladder steepens. Half dollar to ping-pong (1.25–1.50″) dents any horizontal panel and starts finding hood edges. Golf ball (1.75″) reaches vertical surfaces — doors, fenders — splits mirror caps and trim, and marks aluminum deeply enough that repair technique starts to matter (aluminum work-hardens; it wants slow, warm PDR, not force). Hen egg (2.00″) does all of that at depth. Tennis ball and beyond (2.50″+) is the glass-and-paint tier: broken windshields, cracked finishes, stretched metal — the class where total-loss math enters the room on older vehicles.
Two honest footnotes from the storm log. First, duration is the quiet killer: a hood that survives thirty seconds of golf balls can be exhausted by eight minutes of quarters — when we read a storm’s reports, we look at time spans, not just the biggest stone. Second, damage hides: shallow dents from inch-class hail routinely go unnoticed until low-angle light finds them at a car wash or a trade-in appraisal. If your area took anything at quarter size or better — DFW logs those days constantly; the pattern lives in our hail season data guide and our storm-by-storm log — a free raking-light inspection settles the question for nothing.
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