Mullion/Muntin Moulding 1-1/4" - 5

This isosceles trapezoid muntin moulding 1-1/4" - 5 measures 1.250" wide by .406" thickness, enabling a 1-1/2" wide blank of four-quarter lumber for milling on a commercial molder. The symmetrical profile contains a 27/32" wide flat line segment on the top center. Each side of the horizontal line connects to a downsloping 63.322 degree angled line creating the trapezoid.

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Caution: the cutters will come within .020" of the machine bed plates when milling this detail. We recommend a wooden, phenolic, or plastic sacrificial bed plate for these types of milling operations. For 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 = 1.250" / Depth of Cut = .406" (top knives).