Using the wrong extension cord can be dangerous. They can melt or overheat and cause a fire, according to the U.S. Consumer Product Safety Commission. To prevent this, it’s important to buy the ...

This indicates the gauge is 16, the smallest gauge available in household extension cords. Gauge refers specifically to the thickness, or diameter, of the cord's conductor wire.

For instance, a 16-gauge extension cord can handle a maximum of 13 amps, while a 14-gauge cord can handle up to 15 amps (or 1,800 watts), the same as a standard wall outlet in the US.

10 gauge is good for really heavy-duty machinery like: Jackhammers. Table saws. Generators. How to choose the right extension cord Choosing the right extension cord is important.