10-gauge wire is a type of electrical wire that has a specific thickness, measured in American Wire Gauge (AWG). The lower the gauge number, the thicker the wire. This thickness allows 10-gauge wire to carry a higher electrical current, making it suitable for applications like home wiring, power tools, and appliances. Typically, 10-gauge wire is made of copper or aluminum, with copper being the more common choice due to its excellent conductivity. It is often used in circuits that require a significant amount of power, such as subpanels or heavy-duty extension cords. Proper installation and safety measures are essential when working with this type of wire.