Copper Sheet Thickness Guide
8 mil (.008 inches thick) 32 gauge: the 8 mil copper is approximately 11 - 12 times thicker than typical household aluminum foil and 1.5 times thicker than the 5 mil. this is a heavy-duty tooling foil. 8 mil can be cut fairly easily with scissors and is still very pliable. it may hold shape a little better than the 5 mil, but will not bear much weight and will yield to increasing.