2007-11-13 07:29:07 · 6 answers · asked by Anonymous in Home & Garden ➔ Do It Yourself (DIY)
I would go at least 8"deep and 12 " wide and use #4 rebar. If you live in FL it needs to be 16" deep and 12"wide because you need the additional weight for uplift.
If you plan to do it legally you will need engineered drawings for permitting and the engineers calculations will dictate the size of the foundation.
2007-11-13 07:34:38 · answer #1 · answered by Parercut Faint 7 · 1⤊ 0⤋
I'm gonna agree with answer 1.
"Footers", no less than 18 deep by 12 wide; especially in not having many details from you. I live in FL, have worked here since 72, and I disagree with how much concrete.
Typical residential MESH is acceptable if codes say so, and 4 inches for a SLAB; is a bit on the thin side, 6 might be acceptable, 8 might be over kill given the fact that the Sunroom might be more than just a Screen Room.
Steven Wolf
2007-11-13 16:25:45 · answer #2 · answered by DIY Doc 7 · 0⤊ 0⤋
4" is probably too thin a footing section no matter where you live. a 6" would be a much stronger section. Add to this whatever you need to get below the frost line in your area so you new sunroom won't heave. The footer will also be stronger with at least #4 rebar, 2 continuous bars in top and bottom of the footer.
2007-11-13 15:45:57 · answer #3 · answered by Jeffrey S 6 · 0⤊ 1⤋
you can make the slab 4" but the FOOTING needs to be at least 12x12. I usually use a square head shovel and go blade deep and wide.
2007-11-13 18:57:06 · answer #4 · answered by ktbug3335 5 · 0⤊ 0⤋
The answer depends on local building codes and geographical location. You don't have enough information here to answer the question so you might want to look into the building codes for your city/town/village.
2007-11-13 15:33:32 · answer #5 · answered by beme 3 · 0⤊ 0⤋
I agree with the others. It depends on where you live, but 4" seems kind of flimsy.
2007-11-13 15:49:50 · answer #6 · answered by Brian A 7 · 2⤊ 0⤋