Crown 3-5/8" - 17

This decorative 3-5/8" - 17 cyma recta crown moulding measures 3.500" width by .750 thickness, permitting the use of a 3-7/8" wide blank of four-quarter lumber for milling sprung (laying horizontally flat) on a commercial molder. The simply elegant profile contains a 1/2" tall vertical fillet on the top left. The short line connects to a 1-1/32" concave semicircle tangent to a 1-3/8" radius convex arc, creating the center's cyma recta. The s-shaped curvature attaches to a 15/32" tall by 1/2" broad perpendicular lines on the design's bottom right side. The fixed spring angles are set 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; they also lock in the positioned height at 2-13/16" tall with a projection of 2-9/32" across the top.