Copper Sheet 10 Mil (.010 inches thick) 30 Gauge Alloy 110 (99.9% cu)Smooth Commercial Finish/Annealed (Dead Soft). Premium Copper Sheets for Crafts and Art Projects, Embossing, Manufacturing, Electrical Applications, Research and Development, Do It Yourself Projects, and Much More! Copper Sheets available in widths of 3", 6", 12", 18", 24" and 36". See our Thickness Guide for help determining the proper thickness for your project. Email us at info@basiccopper.com or call us at 1-618-684-2784 if you have any questions!