How to Install a Door Molding

You can give your house a new look by replacing old and cracked door moldings. It is a simple process that you can do by yourself.

Materials and Tools Needed

The materials and tools that you need may be in your tool box. Those that are not are available in any hardware store. These are:

  • Molding
  • 8p finish nails
  • Two flat pry bars
  • Large, flat wood scraps
  • Ruler and pencil/tape measure
  • Miter saw
  • Hammer
  • Wood putty
  • Awl
  • Ladder or step stool
  • Stain or Paint (if desired)

Steps in Replacing Door Molding

  1. Remove the old molding. You need to do this gently to avoid causing damage to your wall. Use a flat pry bar, but insert a piece of wood scrap to prevent it from touching the wall. Then, insert a second pry bar on the other side of the molding. Remove the molding by pushing the two pry bars in opposite directions.
  2. Measure the height of the molding from the sill top to the inner and upper corner of the door frame. Then, add the width of the header molding you will use.
  3. Miter the diagonal joint to connect the molding. There are many ways to do this, but one of the easiest ways is to use a miter saw to cut pieces of molding to fit. Miter your joints at a 45 degree angle.
  4. Install your header piece with 8p nails. Check to see that it is leveled before nailing. Butt the vertical moldings against the header molding and check to see if it is perpendicular. Make sure that it is connected to the header well. Nail it into place and sink it with the awl.
  5. Cover the nail holes with filler material. You can also paint or stain your moldings if you prefer to do so.