concrete specs

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Old 11-06-11, 11:59 AM
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concrete specs

I'm interested in building a tool shed, not buying a pre-made, but not sure how much concrete to spec in.

Can you give me examples of what would be needed for a 6x6, 8x10, 10x12, and 12x14, shed?

At what point would I need a contractor with a truck vs me with bags of quick crete and mixer?
 
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Old 11-06-11, 12:11 PM
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If I remember correctly, 1 yard of concrete covers 88 sq ft @ 3.5"-4" thick. You can pour the floor either way although mixing up bags can take quite awhile. Generally you can order the concrete without going thru a contractor. Do expect to pay a premium for a partial load of concrete.
 
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Old 11-06-11, 01:57 PM
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So would 4" of concrete work for most sheds?
 
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Old 11-06-11, 03:41 PM
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Concrete

Yes, 4in. will work. At 4 in. thick, 1 yard will cover 81 sq. ft. (12 in/4=3x27=81)

6x6=36/81=.44 yd.
8x10=80/81=.99 yd.
10x12=120/81=1.48 yd.
12x14=168/81=2.07 yd

Hope this helps. Good luck with your project.
 

Last edited by Wirepuller38; 11-06-11 at 03:45 PM. Reason: Added info
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Old 11-07-11, 12:03 AM
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But to elaborate on your initial question--you need to specify to a concrete supplier what strength concrete you want. If your tool shed will be used to support a large Bridgeport lathe or milling machine, I suspect 4" of 5-sack mix will be woefully inadequate (prone to cracking, etc.).

And find out what the cut-off point is to avoid a small load charge--you could form up an approach walkway to make up the difference, and save a bunch of money while getting an added benefit.
 
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Old 11-07-11, 09:32 AM
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Originally Posted by Wirepuller38 View Post
Yes, 4in. will work. At 4 in. thick, 1 yard will cover 81 sq. ft. (12 in/4=3x27=81)

6x6=36/81=.44 yd.
8x10=80/81=.99 yd.
10x12=120/81=1.48 yd.
12x14=168/81=2.07 yd

Hope this helps. Good luck with your project.

Thanks!


Originally Posted by BridgeMan45 View Post
If your tool shed will be used to support a large Bridgeport lathe or milling machine

Hmm, I may have to update my wishlist, lol.
 
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