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Old 01-15-2012, 02:47 PM   #1
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Leveling skids for a shed on a unlevel concrete foundation


Hi guys I have a problem that I hope you can help me with. I recently purchased some plans for a 12' x 24' shed. The foundation calls for 6x6's to be used as the skids.I have a 15'x24' concrete slab where an old shed once was, and i would like to use it as the site for my new shed the problem is thier is a crack in the middle of the slab and the right side of the slab has droped i'm guessing anywhere between an inch or two.What can I do to make sure my skids are level. If i build up with cement blocks they will just be following the slope of the cement on the right side of the slab and my skids won't sit level on the blocks.Any suggestions would be appreciated.

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Old 01-15-2012, 03:01 PM   #2
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Leveling skids for a shed on a unlevel concrete foundation


Put a layer of gravel on top of the concrete and level it, or shim between the skid and bottom of the shed where needed. I am assuming there is a floor in the new shed.

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Old 01-15-2012, 03:07 PM   #3
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Leveling skids for a shed on a unlevel concrete foundation


Quote:
Originally Posted by will02 View Post
I have a 15'x24' concrete slab...
would like to use it as the site for my new shed.
...purchased some plans for a 12' x 24' shed.

There is a crack in the middle of the slab...
and the right side of the slab has dropped an inch or two.
Any suggestions would be appreciated.
1) It's only a shed.
2) You can make up that level difference with the framing.
3) Top Bond.
4) Build a 15x24 shed to fit the slab.
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Old 01-15-2012, 03:23 PM   #4
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Leveling skids for a shed on a unlevel concrete foundation


Not a great idea to try and built any shed sitting directly on that slab if that's what Tarheal is suggesting. It will sit two low and will rot out the sides.
Sitting it on a level gravel bed would work fine, Make sure to use 6 X 6's and use at least 4 of them to spead out the load.
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Old 01-15-2012, 08:46 PM   #5
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Leveling skids for a shed on a unlevel concrete foundation


No, I am definitely going to use the treated 6x6 skids to keep it off the ground. The problem with putting the gravel bed on top of the cement is the slab sits higher than grade and the rock would just spill over or wash out unless I frame some sort of retaining wall to hold the rock in. It's probably a 2" drop or so after looking at it what if I put a cement block under the skids which will obviously follow the slope of the slab, but then either find or fabricate some wedges to make up the difference where the skids wont meet the blocks giving it 100% contact. I'm hoping i can find a solution because I want to keep the shed in this particular location, plus I really don't want to have to remove a 15'x24' slab.
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Old 01-16-2012, 10:22 AM   #6
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Leveling skids for a shed on a unlevel concrete foundation


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Originally Posted by will02 View Post
No, I am definitely going to use the treated 6x6 skids to keep it off the ground. The problem with putting the gravel bed on top of the cement is the slab sits higher than grade and the rock would just spill over or wash out unless I frame some sort of retaining wall to hold the rock in. It's probably a 2" drop or so after looking at it what if I put a cement block under the skids which will obviously follow the slope of the slab, but then either find or fabricate some wedges to make up the difference where the skids wont meet the blocks giving it 100% contact. I'm hoping i can find a solution because I want to keep the shed in this particular location, plus I really don't want to have to remove a 15'x24' slab.
Ayuh,.... Are the 6x6s goin' along the grade, or across the grade change,..??

If the 6x6s are goin' across the grade change, I'd set it up, Level, then pack non-shrink grout under it to stabilize it...

If the 6x6s are runnin' with the grade change,...
Set 1 where it's gotta go, the shim up the other 1 to level, with more P/T wood shims...
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Old 01-16-2012, 11:55 AM   #7
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Leveling skids for a shed on a unlevel concrete foundation


I think about the only thing i can do is shim the skids up with P/T wood thanks for all the help and replys guys.
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Old 01-16-2012, 02:58 PM   #8
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Leveling skids for a shed on a unlevel concrete foundation


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I think about the only thing i can do is shim the skids up with P/T wood thanks for all the help and replys guys.

That would work nail plywood or 2x6 shims on the bottom, different thickneses as needed

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