Jobsite Inc., Grand Junction, Colo., offers three sizes of high-quality gutter forming machines to produce seamless gutters on-site or in-plant. These machines form a wide range of metals including steel (stainless, galvalume, galvanized and vinyl coated steel of 24 and 26 gauge), aluminum (0.027- and 0.032-inch thickness), and copper (16 ounce, 1/2 hard).