Chair Rail Moulding 4-3/8" - 4

This concave chair rail or casing moulding 4-3/8" - 4 measures 4.375" wide by 1.500" thickness. The eye-catching profile is comprised of a one inch wide half round circle flanked by one eighth inch lines on the left side, connected to a 2-3/8" wide, 1-13/16" radius scotia in the middle, attached to a one half inch wide bead also flanked by 1/8" wide line segments, leaving a 3/4" thickness dimension on the right side of the pattern. Explore our backout category for an appropriate relief cut for the bottom of this detail, we’re confident you will find a suitable design to suit your needs.

This profile will require eight quarter lumber for milling, we recommend planing the rough wood down to a 1-3/4" thickness dimension prior to machining, this action will help in relieving stress on the knives. Ever wonder why cutters break from time to time? Read our commentary on knife breakage for possible causes and solutions to this phenomenon, also review our commentary on custom made pressure shoes, this helpful step by step article will help you mill this profile to perfection.

For knife quoting purposes click to open the calculator below, we have added only the important measurements, just enter the appropriate dimension in the boxes provided. A brief detailed explanation on how to use the calculator is located here. Need some assistance with the dimensions? Print a copy of our fraction - decimal - millimeter chart, place it on the molder to help operators save time and increase accuracy during machine setup.

Width = 4.375" / Depth of Cut = 1.035" (top knives) & .093" (bottom cutters.)