You want to protect your tools and property. You also want to make sure your tools run they way they should, at peak performance. In order to protect your tools and make sure they run at peak performance, you should understand extension cords and their ratings. Below is a table of the ratings of extension cords.
The chart shows the correlation between the length of the extension cord, the gauge and how many amps it can handle.
| Cord Length (ft.) | Gauge | Max Amps |
| 25 | 18 | 10 |
| 25 | 16 | 13 |
| 25 | 14 | 15 |
| 50 | 18 | 5 |
| 50 | 16 | 10 |
| 50 | 14 | 15 |
| 75 | 18 | 5 |
| 75 | 16 | 10 |
| 75 | 14 | 15 |
| 100 | 16 | 5 |
| 100 | 12 | 15 |
| 125 | 16 | 5 |
| 125 | 12 | 15 |
| 150 | 16 | 5 |
| 150 | 12 | 13 |