Crown Cut Calculator

Free miter & bevel settings for cutting crown molding flat on its back — for any profile, any corner angle, inside or outside, on a dual- or single-bevel saw.

The 31.6° / 33.9° crown detents stamped on your miter saw only work for a true 38° spring-angle crown at a square corner. Real profiles run 38°, 40°, 41°, 45° and everything between — and cabinet reveals change the effective spring angle again. That half-degree is why tall crown joints won't close no matter how many test cuts you burn. This tool computes the true settings from the crown's actual geometry: enter the width, bed, and projection off the manufacturer's spec sheet (or measure the stick in a framing square), set your corner, and read the miter and bevel — with saw diagrams showing which edge goes against the fence, which way to swing and tilt, and which side of the blade to keep. Fractions or decimals both work. Print the setup card and tape it to the saw.

Built and used by the install crew at Hardwood Creations, Belmont NC. Always confirm with one scrap cut before cutting finished stock.