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Old 03-07-2011, 04:30 PM   #1
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deck over concrete pad


Hi Folks,

My spring project is to replace a set of stairs leading to our back door with an 8x8 deck, with stairs. The stairs are on top of a concrete pad and I was hoping to bolts the 6x6 posts to the concrete pad. But when I got my permit the guy said that the concrete can move and it'd be better to cut out a section of the pad and put a footing in. I'd only have to do two footings, but I'd rather not if I don't have to. My question for all of you is, would it be ok if I had a ledger attached to the house and two 6x6 posts bolted to the concrete pad below. Has anyone had experience with concrete pad moving and messing up a deck that was bolted to it? I'll get some pics for a better idea of what I'm talking about...

Thanks...

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Old 03-07-2011, 05:45 PM   #2
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deck over concrete pad


Quote:
Has anyone had experience with concrete pad moving and messing up a deck that was bolted to it?
Ayuh,... If you get Frost,...
Concrete pads, without footers Will move, regardless what it's bolted too...
Or what's bolted to it...


Last edited by Bondo; 03-08-2011 at 06:09 AM.
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Old 03-07-2011, 05:53 PM   #3
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deck over concrete pad


How many risers on the stairs? Can you secure them to the top and let the bottom float?
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Old 03-07-2011, 05:56 PM   #4
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deck over concrete pad


In my town, the rule is that a deck of any size requires footers to support the columns. A pad is not acceptable. I happen to agree with this approach, the columns hold up the deck, and failure of the column/pad connection could result in collapse, which would be a bad thing.
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Old 03-07-2011, 09:51 PM   #5
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deck over concrete pad





So here is the location of the new deck, any other thoughts on building it? I was going to leave the other concrete pads alone, not sure why they are there, but I will be cutting the bottom of the three "pads" and putting two 48" footings... Lord willing.
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