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How to Repair Wood Cracks

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Master woodworker George Vondriska teaches you how to repair wood cracks in your woodworking projects. A WoodWorkers Guild of America (WWGOA) original video.

You might also be interested in: Furniture Leg Repair – How to Fix a Broken Leg, Repairing an Old Chair, or Restoring Veneer on an Antique

Discussion
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16 Responses to “How to Repair Wood Cracks”
    • WWGOA Team

      Hi, cdplummerjr!

      Thanks for the question. The approach described here works great for painted surfaces, but or a stained piece I’d suggest mixing the CA glue with sanding dust from the project itself, rather than using baking soda. It takes little more time but gives you a better match. To do this, sand using 150 grit paper on a sanding block until the crack is filled flush with dust. Then put CA glue on the dust, letting it the dust soak up as much glue as possible. Let it sit for a minute or so, then sand flush. It will likely need 2-3 applications of this approach to get it flush. Sand it very thoroughly on the last one to get any residual glue off of the surface. This produces a good surface for staining. Good luck!

      Reply
  1. rhukill61@gmail.com

    Gorge what if you have a crack or a void in oak and a person wants to stain it? Bob

    Reply
    • WWGOA Team

      For a stained or clear finish you can follow the same procedure, but use sanding dust as a filler rather than baking soda. Generally I will hand sand with 220 grit sandpaper over the defect, filling the void with sanding dust, then soak it with CA glue, and then immediately sand over the top of the CA glue. Repeat this as needed until the void is filled flush to the wood’s surface

      Reply
  2. Bill

    Hi George,
    Will this work with a vertical crack in a doorframe? If not, dwe you have any suggestions on how to repair it short of replacing the entire frame?

    Reply
    • Customer Service

      Hi Bill. If the crack is causing functional problems with the door, I would replace the frame or at least the cracked frame member. If the door frame is painted, then I would suggest using caulk. Caulk is flexible and works well when there is a lot of stress on a piece. It also makes for a very simple repair job. If the door is stained, I would suggest using furniture repair wax such as this: https://amzn.to/2NLSJ4c.
      Thanks
      Paul-WWGOA

      Reply
  3. Jenny

    I’m sorry please repeat……what is CA glue……. it looked like a super glue…..is it something like that?

    Reply
    • Customer Service

      Hi Jenny. CA = Cyanoacrylate Super Glue is a brand name for CA glue.
      Thanks
      Paul-WWGOA

      Reply
    • Customer Service

      Dear Mark,

      Thank you for your patience. In response to your question-

      This fix is designed for painted surfaces. If you want a color matched patch I’d suggest mixing sanding dust from the wood that you are patching, and mixing it with CA glue directly in the crack itself. This works great for small repairs. For larger repairs mix sanding dust with quick set epoxy.

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      Paul
      Woodworkers Guild of America

      Reply
  4. Mike

    Being deaf, captions would sure help here, I had no idea what liquid he was using until I read the comments.

    Reply
    • Customer Service

      Hi Mike. We appreciate your feedback and it has been forwarded to the proper department. Your comments are important to us and help with the development of our online video streaming community.
      Thanks
      Jean-Woodworkers Guild of America Video Membership

      Reply
  5. Kevin

    Years ago when I worked at a factory that made custom wood doors & windows, we used a very similar technique to fill small cracks or gaps in a door or window frame. We would use the same technique you describe below with the sanding dust and then sanding over it, but we used a little yellow wood glue. CA glue was not as readily available or cheap back then, but the yellow glue worked well and the results stained beautifully. Might prove handy if someone is caught with their glue pants down.

    Reply

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