What do the terms 48 ounce and 16 gauge mean?
First, here's a clarification about how these numbers work. Ounce designations refer to the weight of the metal per square foot. A larger number means thicker metal. Guage numbers refer to the actual thickness, and smaller numbers mean thicker metal.
Stainless steel and mild steel are commonly referred to in gauge numbers. We use several different gauges including 18, 16, 14, and 12 gauge. We use primarily 14 gauge stainless steel, which is .075 inch (75 thousandths) thick. This is about the thickness of a nickel.
Copper is commonly reffered to in ounce numbers. These ounce designations refer to the weight of the metal per square foot. Copper that is 1/16" thick weighs about 3 pounds per square foot, hence the 48 ounce designation. Metal that is 1/16" thick is almost the same thickness as 16 gauge.
Zinc, brass, and bronze thicknesses are usually referred to in decimal inches. We use zinc that is .060 inch (60 thousandths) thick for our zinc countertops. This is about the thickness of a quarter.
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