Crown 3-7/16" - 12

This symmetrical 3-7/16" - 12 crown mould measures 3.437" wide by .750" thickness, enabling the pattern to be milled sprung (laying horizontally flat) from four-quarter lumber. The cove-shaped profile is composed of a 2-1/8" concave semicircle in the center, flanked by a 3/16" square notch with a 13/64" tall vertical line on top and a 13/64" wide horizontal line at the bottom of the pattern. The spring angles are fixed at forty-five degrees, these specific back bevels set the installed height and projection at an identical dimension of 2-7/16" tall and wide.

Review our commentary about axial constant positioning for crown bevels, the article will help you dial this profile in axially on the first try when milling this detail provided the machine is axially calibrated.