Step 4: Lay out the hinge mortises

laying out the hinge mortises of a new door
Photo: Brian Wilder
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Lay the old door back on top of the new door, aligning them so that all four edges are flush.

Line up a combination square with the old door's hinge mortises and transfer their locations to the new door.

Tip: Mark the cut lines for the mortises with a utility knife; it produces a much more precise line than a pencil.

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    Tools List

    • hand plane
      Hand plane
    • ratcheting screwdriver
      Screwdriver
    • straightedge guide
      Straightedge guide for circular saw
    • combination square
      Combination square
    • circular saw
      Circular saw
    • Phillips screwdriver
      Drill/driver with extra-long Phillips tip
    • keyhole saw
      2 1/8-inch hole saw
    • spade bit
      7/8-inch spade bit
    • self-centering bit
      Centering bit
    • 16-foot tape measure
      Tape measure
    • hammer
      Hammer
    • chisel
      3/4- and 1-inch-wide chisels
    • utility knife
      Utility knife

    Shopping List

    1. INTERIOR DOOR

    2. PRIMER AND PAINT, OR STAIN AND VARNISH