How to Reinforce Wood Chairs


Traditional woodworking uses different types of joints in the construction of a chair. The most common joint used is the mortise and tenon joint where a hole, the mortise, is cut into one piece of wood that matches a wedge (the tenon) on the other piece of wood. The joint uses wood glue and pressure to create stability. The joint typically weakens with age. Reinforcing the joints to keep the chair sturdy requires a brad nailer and a few minutes of your time.

Things You'll Need

  • Wood glue
  • Brad nailer
  • Rubber mallet
  • Disengage any loose connections. Pull loose joints apart so that you expose the joint or groove for regluing.

  • Squeeze a small amount of wood glue into the groove and reinsert the tenon into the joint.

  • Tap the joint with a rubber mallet until the joint is tight.

  • Use a brad nailer to put a nail through the side of the joint into the tenon. For example, place a nail through the side of the leg into the support beam that inserts into the leg. Angle the nail so that it intersects the tenon.

  • Repeat the process for two sides of the joint so that you the brads cross in the center of the tenon.

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  • Photo Credit Victoria Wall/Brand X Pictures/Getty Images
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