Miter angle chart

Saw settings for shapes with 3 to 12 equal sides.

Set your miter saw to the angle in the third column, measured from a square cut, and cut the same angle on both ends of every piece. The corner angle is the angle where two pieces meet. For other numbers of sides, use the miter angle calculator.

SidesShapeMiter saw angleCorner angle
3Triangle60°60°
4Square or frame45°90°
5Pentagon36°108°
6Hexagon30°120°
7Heptagon25.71°128.57°
8Octagon22.5°135°
9Nonagon20°140°
10Decagon18°144°
11Hendecagon16.36°147.27°
12Dodecagon15°150°