SIMILAR BUT DIFFERS FROM STOCK PHOTO. A high-sided version of our popular big sheet, this is a go-to pan when cooking or baking for a crowd. Use it for baking bars, sheet cakes, or roasting. broiling meats, and vegetables. Plus, use for transporting food to and from the barbecue. Made of premium natural aluminum for even heating and sized to fit standard, full size home ovens. It's one fantastic pan! Pan exterior measures 21.1 x 15 x 2 inches and has a cooking surface of 20.4 x 14.4 inches. Aluminum is reactive to acidic ingredients such as vinegar and tomato products. These foods may darken, pit or corrode the pan after prolonged use. Proudly American made with domestic and imported materials since 1946, our aluminum bakeware-quality pieces are made to withstand a lifetime of use in your home kitchen.