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Fixing and uneven shop floor.

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Forum topic by Beginningwoodworker posted 05-21-2011 06:25 AM 1144 views 0 times favorited 4 replies Add to Favorites Watch
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Beginningwoodworker

13345 posts in 2369 days


05-21-2011 06:25 AM

Someone remend me to jack up, my shop with jacks and install 4×6 post under my shed. To take out the sunk.

-- CJIII Future cabinetmaker


4 replies so far

View mafe's profile

mafe

9573 posts in 1785 days


#1 posted 05-21-2011 01:27 PM

?
Is that a song?
Laugh.
Best thoughts,
Mads

-- Mad F, the fanatical rhykenologist and vintage architect. Democraticwoodworking.

View William's profile

William

9162 posts in 1538 days


#2 posted 05-21-2011 01:43 PM

Most would probably need more information to answer this post. What exactly is causing your sagging issue? I think if it is just weak joists, if I understand your post correctly, then the idea of 4×6 posts might help if placed properly. Another idea I’ve used a lot when I done remodeling work (long, long time ago) was pearling blocks. If you don’t know what that is I can explain.
Another possibility is that your foundation has settled too much. If that is the case, the posts may not help until you address the settling problem and make sure the ground underneath it is stable. If it is, it may simply need added support, like the posts. If it isn’t stable, it may require digging down and adding post support deeper into more stable ground.
Without knowing exactly what is causing a floor too sag, sink, or buckle, it’s hard to give good advice.

-- http://wddsrfinewoodworks.blogspot.com/

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Beginningwoodworker

13345 posts in 2369 days


#3 posted 05-21-2011 02:09 PM

I really dont know what cause it to sag, I guess it because the floor is sitting on the ground.

-- CJIII Future cabinetmaker

View William's profile

William

9162 posts in 1538 days


#4 posted 05-21-2011 02:32 PM

If the floor itself is sitting on the ground, then yes, you definately need to jack it upand get it off the ground. I would jack up one side. Put the4×6 post, making sure it is as long as the building is wide, and put along that side. Then jack up the other higher than the first end and set 4×6 posts about every two feet (maximum, the more the better) and set it back down. Now see how it sits. If the ground is level, you’re good. If it is now unstable, then you’re going to have to get everthing up and do some ground leveling. There is no way to easily do this besides get a shovel, find your high spots, and start working. If the ground is way out of level, enough for you to see now that it is, then you may as well head on down to the building supply store and get some foundation blocks to go under those posts so you can level things up that way.
There’s so many variables that you could possibly run into. There are also other variables that could be causing this. You say the floor is sitting on the ground. I think something is either missing or the floor itself is not actually sitting on the ground, but rather, the joists under the floor. I’ve never seen a building withough somekind of joists to hold everything together. I’m not saying it’s impossible. I’ve learned years ago not to doubt anything without seeing it.
I think at this point though, if you want to take out the sag though, you have to get it off the ground regardless. So I suggest before doing anything, get a jack, jack it up and see what you’re working with.

-- http://wddsrfinewoodworks.blogspot.com/

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