This decorative fluted molding 4-1/2" - 4 measure 4.500" width by .687" thickness, permitting the use of four quarter lumber for milling on a commercial-grade molder. The grooved profile contains four 5/8" wide concave semicircles divided by five 7/32" wide line segments in the center. The remaining portion retains a two tangent radius ogee derived from a 3/16" concave and convex semicircle joined to a 3/32" flat line segment, leaving a 5/16" thickness dimension on each side edge of the design.

We offer many exceptional grades of quality high-speed steel and carbide in various size widths for grinding and milling all our designs. Ever wonder why molding cutters break from time to time? Read our commentary on knife breakage for possible causes and solutions to this phenomenon.

For molding knife quoting purposes, click to open the calculator below; we supplied only the important measurements, enter the appropriate dimension in the boxes provided. A brief detailed explanation on how to use the calculator is located here. If you would like some assistance with the dimensions, print a copy of our fraction - decimal - millimeter chart, place it on the molder or around the shop to help machine operators save time and increase accuracy during setup procedures.

Width = 4.500" / Depth of Cut = .384" (top knives) & .063" (bottom cutters).