Miter and Bevel

Definition

Miter is the rotation of the saw table; bevel is the tilt of the blade. For crown molding, spring is the angle between the wall and the back of the profile. A 38° spring (52/38 crown) on a 90° inside corner is about 31.6° miter and 33.9° bevel. Flat polygon rings need only a miter (180°/n from square) and no bevel. Always test on scrap; coping inside corners is often more accurate than two miters.

Calculators that use this

• Fine woodworking & cabinetry

  Crown Molding Angle Calculator

  Get compound-saw miter and bevel angles from crown spring angle and wall corner. Defaults match a 38° spring (52/38 crown) on a 90° inside corner.

• Fine woodworking & cabinetry

  Polygon & Segmented Ring Calculator

  Miter angle, outside face length and chord for regular polygons and segmented turning rings from side count and diameter.