How to Fix a Cracked Door Frame

Written by diana braun
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The frame of a door provides the locking mechanism of the door, called the door jamb, and is responsible for ensuring the door stays closed and locked. Wooden door frames may crack after continued daily use and abuse. If the frame is cracked, it makes it easier for outside intruders to gain access to a building or home. Repair the door jamb and door trim with supplies found at most hardware and home improvement stores to properly fix a cracked door frame.

Skill level:

Things you need

  • Pry bar
  • Chisel
  • Circular saw
  • Hammer
  • Nails, 2-inch
  • Tape measure
  • Replacement wood trim
  • Strike plate

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    Door Jamb Repair

  1. 1

    Remove the weather stripping and door casing with a putty knife. The casing is the protective cover on top of the door jamb.

  2. 2

    Cut out the cracked area of the jamb using a circular saw.

  3. 3

    Trim area using a chisel.

  4. 4

    Measure the size needed for the wood board. Cut and insert the replacement wood frame into the open portion of the jamb.

  5. 5

    Nail the replacement wood to the inside frame using 2-inch nails.

  6. 6

    Install a new strike plate in the jamb. Nail or screw the strike plate in place.

    Trim Repair

  1. 1

    Remove old trim by using a pry bar to lift the trim from the door frame. Tap the end of the pry bar with a hammer for stubborn areas of the trim that won't lift up.

  2. 2

    Remove all old nails from the frame using the nail remover tool on the back of the hammer.

  3. 3

    Install the new trim. Start at the top of the door frame and work your way down, nailing the trim in place.

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