What extension cord gauge should I use with this miter saw?

The correct gauge depends on the cord length and ampere rating — for example, a cord 0-25 ft long requires 6 AWG for up to 10A, while a 26-50 ft cord requires 4 AWG for up to 15A. Always check the condition of your extension cord before use and replace it if damaged or worn out. If in doubt, choose the next heavier gauge, as a smaller gauge number indicates a heavier cord. (Page 2)