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CJ21 11-17-2011 03:30 PM

Slab on grade foundation for a shed?
Have anyone heard of a slab on grade foundation for a shed. I think it would where I live because out frost line is only a few inches deep.

Daniel Holzman 11-17-2011 04:15 PM

I think there were a few words missing from your post, but I gather you are asking if a slab on grade is suitable for supporting a shed. If local building regulations permit, it certainly can be used. You must be in a warm climate, since you state that frost is only a few inches deep, so that eliminates issues with frost heave. Many areas of the country have expansive clay soils, which can be problematic with slabs due to non-uniform soil movement, but since you do not state where you live, it is impossible to know whether that could be an issue where you are.

CJIII 11-17-2011 04:19 PM

I live in Alabama. Building department here dont require a foundation for a outbuilding under 400 sq ft.

woodworkbykirk 11-17-2011 04:23 PM

yup, it gets done the only thing is if you do it you'll want a curb so to keep water and such out when you frame. it basically keeps the concrete to wood joint up off of the ground

CJIII 11-17-2011 04:27 PM

I read somewhere you need to slope the sides?

AndyGump 11-17-2011 09:32 PM

Yeah you can do those all day long in Montgomery, Al.

Some folks here even do plans for that kind of thing if you need to get permits or just to build.

Hint, hint, nudge, nudge.


CJIII 11-17-2011 10:08 PM

I am going to get a permit.

BigJim 11-17-2011 10:27 PM

CJ, I see you like fishing, you wouldn't happen to be a member of the BOC would you?

CJIII 11-17-2011 10:31 PM

Yes I am a BOC member as well.

COLDIRON 11-18-2011 06:24 AM

No problem I have done it several times and I am from PA, don't forget to put anchor bolts in the concrete when its wet and use pressure treated plates.

concretemasonry 11-18-2011 08:01 AM

CJ -

I think the sloping could be used on one the oversized area around the shed to make sure there is positive drainage away and not into the shed.

Dick - The world's greatest fisherman and second best liar.

CJIII 11-18-2011 08:05 AM

I was thinking just to use concete nails.

BigJim 11-18-2011 11:05 AM

CJ, my call name on the BOC is fish, good to see you buddy.

DexterII 11-18-2011 11:28 AM

CJ, I think that you're in good shape, up to your last post. Use anchors, as Coldiron suggested, not nails.

CJIII 11-18-2011 12:00 PM

Yes I love to catfish.

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