Plane the joist or cut the lally column?

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Topic by OnMyOwn posted 02-27-2012 01:22 AM 4245 views 0 times favorited 5 replies Add to Favorites Watch
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2 posts in 2517 days

02-27-2012 01:22 AM

After ripping up carpeting to prep for a floating floor, a hump was discovered across the middle of my living room. The slope is noticeable now that the floor is bare and I have determined it is directly above the lally columns in the finished basement. I have received a few “opinions” regarding the remedy to level the floor. One option to level the floor is to remove the plywood and plane the floor joist until the floor is level. That option sounds much easier than cutting the lally column. I’m concerned that thinning the floor joist may not be safe. Any opinion would be greatly appreciated.

View DeanColumn1's profile


1 post in 2515 days

02-29-2012 02:00 PM

Removing the column is not hard. The concern you should have is lowering the floor to get it level. The problem with lowering the floor is you run the risk of cracking your sheetrock or tiles, if you have any. If you choose this route you should only lower the floor about 1/8” every week to be safe not to crack anything. You can check out our website for more info on the columns www.deancolumn.com Good luck.


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2 posts in 2517 days

03-02-2012 02:55 AM

Mystery solved. I just had to see what was under the subfloor. My son and I ripped up a section and we found that on top of the 3 2×12 support beams were shims lined across the top of the beams. Really? So what happened is when the subfloor was done the builder realized the floor was not level and stuffed shims between the boards and the beam and then used 4 different types of nails and some screws and then for good measure some glue! People just don’t do the right thing anymore. Thank you DeanColumn1 for your advise. I’m so glad that I didn’t have to do anything with the columns.

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