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Old 10-06-2011, 04:25 PM   #1
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Shed foundation?


I need some ideas on how to build a foundation for my new 10x12 tool shed. I am thinking about use soild concrete blocks sitting on the ground to support the wooden floor frame 16'' on center with blocking in the middle. I am wondering is that a good idea?

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Old 10-06-2011, 05:02 PM   #2
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A lot depends on the soil---and the amount of rain you get down there in Montgomery.

If budget allows, I would think a shallow footing or short wall of poured concrete would be most stable.

Block laid on the ground will sink unevenly and cause you trouble in coming years,

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Old 10-06-2011, 05:09 PM   #3
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Could I sit the blocks on crush run gravel?
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Old 10-06-2011, 05:24 PM   #4
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I need some ideas on how to build a foundation for my new 10x12 tool shed. I am thinking about use soild concrete blocks sitting on the ground to support the wooden floor frame 16'' on center with blocking in the middle. I am wondering is that a good idea?
Check with your town, there might be regulations about that.

In my town the shed is either put on 4x4 skids which sit directly on the ground, or the shed is built on a concrete slab, or the skids sit on 8" sono-tubes. They will fail you if you have the shed sitting on blocks which are just placed on the ground.

That said, a friend of mine in another town did just that. He leveled and compacted the ground, and sat the skids of his shed directly on concrete blocks. It's been a couple of years, as far as I know it's still there and still reasonably level.
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Old 10-07-2011, 12:13 AM   #5
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You could probably get away with a crushed rock or gravel footing with a pressure treated wood foundation, (the stem walls).

Fairly inexpensive and a good DIY project.

Andy.
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Old 10-07-2011, 09:33 AM   #6
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Shed foundation?


On this same topic, assuming he decided to go with a slab, how many bags will a normal sized concrete mixer handle at a time?
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Old 10-07-2011, 09:46 AM   #7
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Concrete mixers are measured in cubic feet of capacity, not in normal or abnormal. What size mixer are you talking about? There are many sizes.
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Old 10-07-2011, 10:35 AM   #8
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I thought about a slab.
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Old 10-07-2011, 11:41 AM   #9
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Well that certainly answers the question!
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Old 10-08-2011, 10:29 AM   #10
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You could probably get away with a crushed rock or gravel footing with a pressure treated wood foundation, (the stem walls).

Fairly inexpensive and a good DIY project.

Andy.
Just be sure to compact it. That's what I did for my 10 x 30 "shed."
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Old 10-08-2011, 03:19 PM   #11
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Most common mixers hold 3 bags---
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Old 10-08-2011, 06:14 PM   #12
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Shed foundation?


gas powered 12 cubic foot mixer i feel comfortable with 3 to 4 66lb bags. you have to cover the opening with a tarp and bungie cords and mix it in the near horizontal position.

you'd also need two or three mixers at the same time to pour enough concrete before it setup. you gotta keep that flow going for such a large foundation.

don't let the concrete harden in the mixer... rinse it clean.

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Old 10-08-2011, 06:22 PM   #13
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don't let the concrete harden in the mixer... rinse it clean.

Knucklez

Now you tell me!
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Old 10-08-2011, 10:02 PM   #14
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I would put six piers out of some 12'' sono tubes. The frostline here in tennessee is 12 inches so if you dig a few little holes 12 inches deep and drop a couple sonotubes in them and level them and fill with concrete. Thats pretty easy and cheaper than a boatload of crushed rock. Then put a double 2x band on them and fill in the center with joists 2x8 would be fine.

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