Corners on opposite ends of most sheets were damaged, but I think that was either the carrier or the shipper and not TSC. The product was placed flat and in an unobstructed area at TSC store. The way the product was packaged at the shipper obscured all corner views, so I am pretty sure the damage was not caused by TSC and was present prior to arriving at TSC. I watched/was with the TSC forklift when product was placed into my pickup and the operator was careful to not hit or bounce into anything. It was coroplast, so the defective areas were easy to cut out and I had plenty to do the job. Nothing to complain about but maybe something you should be aware of to mention to shipper or carrier. Overall, I am satisfied with the purchase.