What is wire gauge and why is it important?
Extension cords are typically found in 18, 16, 14, 12 and 10 gauge sizes. The sizes are based on the American Wire Gauge (AWG) system in which the smaller the gauge number, the thicker the wire. For example, a 14 gauge cord has thicker wire than a 16 gauge cord and can therefore carry more power to a tool or appliance.