What type of shim do I use to shim up a sill plate 1/4 inch on top of a cmu block wall?

  • Are the blocks that out of level? What's the actual problem? My first response is a treated wood shim of your own making, but I'm curious if there's more to the story. – isherwood Feb 26 '18 at 17:12
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    Pour a bond beam and make the top of that level? I kinda like that option, just because it will make the whole thing more secure than the average CMU foundation. Call the mason back to fix the wall? – Ecnerwal Feb 26 '18 at 18:17
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    I don't know your exact problem, but typically you don't shim a sill plate. Shim the floor truss/joist if you're shimming anything. Cut a shim out of wood. – Dotes Feb 26 '18 at 19:36
  • Since concrete contractors do not have that much luck on getting concrete level I have used non-shrink grout under sill plates to get them level, but that's the whole perimeter.... Set with a transit.... – Jack Feb 26 '18 at 20:04

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