If you need 100 feet, go with 12-gauge.

Yes, but only if you use a 12-gauge extension cord. Anything thinner (14-gauge or smaller) and you’ll lose noticeable power — your blower will feel weak and might even overheat.

The math is simple: 100 feet of 14-gauge cord drops about 5-6 volts under a typical leaf blower’s load. That’s enough to cut air velocity by 10-20% and make the motor run hotter. A 12-gauge cord drops maybe 3 volts — barely noticeable.

If you already own a 14-gauge 100-footer, use it for lights or a hedge trimmer. For a leaf blower (or anything drawing 10+ amps), 12-gauge is the minimum. Even then, expect a slight performance hit compared to a 50-foot cord, but it’s fine for all but the biggest yards.

Spend the extra $10-