Terne material thickness is measured using which gauge system?

• A. U.S. Standard gauge
• B. Metric gauge
• C. Decimal gauge
• D. British gauge

Answer: (A)

Terne sheet thickness is specified using the U.S. Standard gauge. This system has long been the conventional reference in North American metalworking for sheet metals, including terne, and the gauge number maps to a specific thickness through standard tables. In this system, lower gauge numbers mean thicker metal, and you translate the gauge to inches or millimeters as needed. Other gauge systems exist—metric gauge would use metric units, decimal gauge expresses thickness as a decimal of an inch rather than a gauge number, and British gauge uses its own separate scale—but for terne in typical practice, the U.S. Standard gauge is the standard reference.