Crown 4-1/2" - 6

This colonial 4-1/2" - 6 crown mould measures 4.500" in width by .750" in thickness, requiring 4-3/4" wide blanks of four-quarter lumber for machining sprung (laying horizontally flat on a commercial moulder. The classic terminating profile comprises a 1/2" tall vertical fillet on the top left. It connects to a graceful two-tangent radius s-shaped curvature known as a cyma recta in the center. The lower portion retains a 21/64" vertical line joined to a 37/64" cove with an 11/32" broad line segment on the design's bottom right corner. The fixed spring angles are at thirty-eight and fifty-two degrees; these particular back bevels keep the face side of the profile parallel to the wall and ceiling when installed, in addition to locking in the height at 3-9/16" tall with a 2-3/4" projection across the top.