OK, Steve, Richard, points taken. Steve, the sheet is just a few months old and arrived that way. All the wrinkles run lengthwise, so I make all my cuts in the same direction. Those wrinkles are bad enough that if I cut across them, the strips just break at those wrinkles, every time. I always try to store the stuff dead flat, and try to take care not to bend it all to heck. I have a brand new sheet of aluminum (not chrome) here right now, but haven't looked at it yet to see if it too is damaged or not. If it is, I may just have to seek out a new vendor.