Understanding sheet metal thickness is essential when selecting material for fabrication, repair, bending, cutting, or forming. A sheet metal gauge chart provides a convenient way to understand the relationship between a metal’s gauge number and its actual thickness. However, gauge numbers can be confusing because a lower gauge number generally means thicker metal, while a higher gauge number means thinner metal. For example, 18-gauge steel is thicker than 20-gauge steel. The actual thickness represented by each gauge can also vary depending on the type of metal. Understanding these differences helps fabricators choose the appropriate material and avoid errors during fabrication. In this guide, we’ll explain how to read a sheet… Read More
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