Column crack vs settlement crack — how to tell

Not all cracks are equal. Learn which patterns need urgent structural attention.

Settlement cracks often appear as stair-steps in masonry or diagonal cracks at window corners. Column cracks run through the concrete member itself — often vertical or at beam-column joints. Width matters: cracks over 3mm in structural members warrant professional assessment. In Seismic Zone V, any column crack should be inspected before the next tremor season.