Questions tagged [footings]

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2 votes
2 answers
817 views

Using old roof footings for a ground-level deck

I had a 40 year-old, asphalt shingled, hip roof (14x18) over a concrete patio that had 4 posts w/footings that supported it in a line opposite the house. The footings, that are still there and were ...
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  • 41
5 votes
2 answers
46k views

How should I build the concrete footings for my deck?

I plan on making a small deck and I live in Howard County Maryland. The deck code here says that the concrete footing must be 30 in below ground level and have a thickness of at least 8 inches (i.e. ...
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  • 889
2 votes
1 answer
4k views

How can I pour a concrete patio under my existing deck without surrounding the deck posts in concrete?

I would like to pour a concrete patio under my deck. The concrete company said they would just pour the concrete around the posts with a expansion joint around the posts. I thought that would cause ...
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  • 23
8 votes
2 answers
10k views

Can I support 6x6" deck posts on 10" diameter poured concrete footings?

I am building a new 13x10 deck. So far I have the ledger board in place, and yesterday I finished building 3 concrete footings, 9 ft away from the ledger board. I use tubing, 36 inch deep with gravel ...
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  • 125
7 votes
4 answers
2k views

How will concrete fill in?

So I am pouring some footings for a deck I am building and my current plan is to dig a hole that is 18" wide and 18" deep. I'm then going to suspend a sonotube about 6 inches above the bottom (using ...
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  • 861
4 votes
2 answers
24k views

Adding rebar to deck footings and piers?

I've heard a few people mention adding rebar to deck footings and piers to make them stronger, but I haven't been able to find any details on how exactly to do this. Is it sufficient to just hammer ...
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  • 861
4 votes
1 answer
5k views

Deck footing 2" above the ground -does that apply to a patio? What is the reason behind the 2" restriction?

I am doing the design of a deck footing and in many places where I read it says that the footing (sonotube) should be set with the top end terminated 2" above the ground level In my case I am ...
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  • 2,869
3 votes
1 answer
15k views

How wide does a 6x6 concrete post footing needs to be?

Need to attach 6x6x8 posts for a free-standing pergola - I'll use Strong-Tie anchors attached to the concrete footing. The hole for the footing will reach well below the freezing line, but how wide ...
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  • 133
0 votes
1 answer
2k views

Footing for deck on slope with one side near grade

I am extending my deck and plan to make it a freestanding deck (just to avoid attaching to the current one but it will be close on top). I plan to have a row of 4 posts on the lower level (left). ...
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