How do you straighten warped wood?


Quick Answer

To straighten warped wood, use winding sticks to find twists and bowed areas, and then use a jack plane to level the surface of the wood. You need a flat surface, two winding sticks and a jack plane.

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Full Answer

  1. Set up the winding sticks

    Place your board on a flat part of the bench, and place winding sticks on top of the board at both ends.

  2. Look for twists

    Look at the tops of the sticks at eye level. To locate twists, look for spots where one stick is higher than the other or sloped.

  3. Remove the twists

    To remove the twists, run a jack plane along the surface of the board from one corner to the other.

  4. Set down a winding stick

    Place a single winding stick at the end of the board so no light seeps through the bottom.

  5. Look for bowed spots

    Slowly side the winding stick towards the other side of the board. Don't lift up the stick while sliding it. Look for instances of light peaking through the bottom to find bowed spots.

  6. Correct the bowed spots

    Run the plane along the board lengthwise, shaving off non-bowed areas until the surface of the wood is level.

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