5 Things to Know About Extension Cord Length and Gauge

50 feet is safe for most uses A 14-gauge cord at 50 feet carrying 10 amps loses about 2% voltage, which is fine for lights and most tools.

100 feet is pushing the limit At 100 feet, voltage drop hits about 4%, causing dimmer lights and potential issues with motors.

Longer runs need thicker wire If you need 100 feet or more, step up to 12-gauge cord to avoid underpowered tools or tripped breakers.

14-gauge handles 15 amps safely But only at shorter distances; longer runs increase voltage drop regardless of amp rating.

Don’t skimp on gauge to save money Buying a heavier cord costs a bit more but prevents performance problems and safety risks.