Add Beam Support

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by: kenno on 12/31/2009 Views 51364



Tools & Materials

  • Form lumber
  • 6 bags concrete
  • 8 feet of rebar
  • Cement blocks
  • 1 sack mortar


This project is about lifting and supporting the sagging main beam in a crawl space under an older home. The floors at one end of the house were sloping towards the center and also downward to a point about six feet from the end of the house (a low spot). A tight string from the outside walls across the area showed it to be an inch low. Inspecting the area from underneath showed the main beam had developed a crack and was sagging. It needed to be raised back to level and supported. Having no experience with a project like this I posted to one of the forums asking if it was a DIY project and seeking advice. As you can see I decided to do it myself. The forum thread has more details and can be viewed at:

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