How to Repair a Warped Door

Written by candice coleman
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How to Repair a Warped Door
Warped doors can affect a home's attractiveness. (Aged door handle on wooden entrance door image by fotosergio from

Doors keep a home's inhabitants safe from intruders and poor weather conditions, but they are also expected to be attractive. They may become warped from moisture or injury, but they can be straightened out with sealer and heavy pressure. You may require the help of a friend if the warped door is a heavy one, and ask a professional for help if you do not know how to finish the project.

Skill level:

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Things you need

  • Screwdriver
  • Straight edge
  • Paintbrush
  • Sawhorses
  • Thin plywood or hardboard
  • Breeze blocks
  • Clear wood sealer

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  1. 1

    Remove the door from its hinges, using a screwdriver. Use two sawhorses set on a level surface to support the bottom and top ends of the door. Use a piece of thin plywood or hardboard on the door to protect its finish. Use heavy weights like stone or breeze block, placing the weights on top of the warped area of the door. The weights should eventually push the warped area back into its proper place. Leave the door beneath the weights for several days or until it has flattened out.

  2. 2

    Add weight and wait a few days if the door will not flatten initially. If the door does flatten, use a straight edge to make certain that the warped area has disappeared.

  3. 3

    Apply clear wood sealer with a paintbrush around the edges of the door to keep moisture from affecting and warping the door again in the future. If the door is heavy, enlist a friend's help to rehang it again. You may want to consider resealing a door again in the future, especially if it is exposed to severe weather conditions. If the door is on the outside of the home, you may have to reseal it as often as every year to prevent warping.

Tips and warnings

  • Do not leave the door outdoors while weights are on it to repair the warped area. Leaving the door outside will expose it to more moisture, where warping may become worse. Leave the door indoors at all times.
  • If the door does not flatten, you will need professional help or you may have to replace the door.
  • Contact a professional if warped area worsens.

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