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-   -   Footer size for a monolithic patio that can support simple roof (http://www.diychatroom.com/f19/footer-size-monolithic-patio-can-support-simple-roof-44828/)

seth 05-19-2009 07:37 PM

Footer size for a monolithic patio that can support simple roof
 
The cost of pouring a separate footer and slab is high, (Two pumps. trips etc) so I am looking at pouring a monolithic turn down slab with footer just enough to support a simple shed roof that can cover 20 X 20 patio. I am NOT building a two story, just a simple roof for a screened porch. I live in Greater Atlanta area

My questions are: 1) What should be the size of the footer of the monolithic slab? 2) Any disadvantages of a monolithic slab? (Crack etc). Thanks

Willie T 05-19-2009 08:11 PM

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Quote:

Originally Posted by seth (Post 275855)
The cost of pouring a separate footer and slab is high, (Two pumps. trips etc) so I am looking at pouring a monolithic turn down slab with footer just enough to support a simple shed roof that can cover 20 X 20 patio. I am NOT building a two story, just a simple roof for a screened porch. I live in Greater Atlanta area

My questions are: 1) What should be the size of the footer of the monolithic slab? 2) Any disadvantages of a monolithic slab? (Crack etc). Thanks

This is what we use here in Florida. If you need side support, same sized haunch around all three sides. That's a 45 degree slope. Three #5's.

Zel1 05-19-2009 09:19 PM

We are pouring a 12x20 monolithic slab within the next week or so. I plan to remove the back wall of my garage and enclose the whole slab to end up with a 3-car, L-shaped garage. Since we plan to park a car on it if necessary, the slab will be 6" thick, fiberglass reinforced with rebar tying it to my existing slab. The footers will be 3' deep.


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