Chair Rail Moulding 4" - 30

This traditional chair rail/casing moulding 4" - 30 measures 4.000" wide by .750" thickness. The symmetrical profile is comprised of a 5/16" wide half round circle in the center of the pattern, flanked by 3/32" wide sunk fillets connected to a deep sloping cyma reversa, joined to a notched fillet that transitions into a 19/32" wide raised fillet with a 1/4" radius on each side edge of the pattern. Browse our backout category for a suitable relief cut for this detail, we have a few options to select from.

We provide the cut steel size on all our moulding knife designs, this specialized feature allows you to be able to obtain the correct width size of knife steel before you start knife grinding procedures and moulding production.

For knife quoting purposes use the calculator below, we have added only the important dimensions, just determine the profiles you need. A brief detailed explanation on how to use the calculator is located here.

Width = 4.000" / Depth of Cut = .411" (top knives) & .062" (bottom cutters).