Stainless steel sheet type 430 with #4 brushed finish.  This grade of stainless steel sheet offers good corrosion resistance to mild environments. Commonly used in kitchens, restaurants, appliance, automotive, siding and residential applications.   This product has a protective PVC sheeting on one side that will peel off by hand.  Steeltec offers simple stainless steel sheet sizes that you cannot find at a Lowes or Home Depot.  As with any cut metals, be very careful of sharp edges and handle with protective gloves.