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Old 11-13-2009, 12:54 PM   #1
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6x6 deck posts to concrete slab


Was wondering if it would be OK to attach a support post to an existing concrete slab using some sort of bracket?

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Old 11-13-2009, 01:18 PM   #2
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6x6 deck posts to concrete slab


Yes - simpons makes a support bracket to drill & bolt to the concrete slab
But in most cases you need more support then the slab offers
Here I needed an almost 4' concrete support in the ground

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Old 11-13-2009, 01:46 PM   #3
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6x6 deck posts to concrete slab


Scubas right. In theory, yes... you can attach it to a slab. In practice, you probably cant because of load issues.
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Old 11-13-2009, 02:08 PM   #4
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6x6 deck posts to concrete slab


Thanks for your replies...I have about a 6" thick slab to work with. I found a bracket at Lowes for the exact application and I think will do. Not the most attractive thing in the world, but will do.
Ryan
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Old 11-13-2009, 02:15 PM   #5
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6x6 deck posts to concrete slab


csiryan...I dont think you got what we said.
You can attach a 6x6 to anything.
But you cant support a deck with a 6" concrete slab.
At least not here in the northeast.
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Old 11-13-2009, 02:20 PM   #6
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6x6 deck posts to concrete slab


If you are putting a deck above this you will probably crack the slab if too many people are on the deck & depending upon the size
And if the deck is attached to the house you have to have support to the same frost depth as the house

If you are putting a roof over the slab it maybe OK
Depends upon span & lumber used
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Old 11-16-2009, 06:57 AM   #7
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6x6 deck posts to concrete slab


Why would a slab that thick not be good enough? The only alternative would be to cut the slab out, which would be less than desirable.
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Old 11-16-2009, 07:07 AM   #8
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6x6 deck posts to concrete slab


Quote:
Originally Posted by csiryan View Post
Why would a slab that thick not be good enough? The only alternative would be to cut the slab out, which would be less than desirable.

Depends what part of the country your from and the codes.
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Old 11-16-2009, 07:47 AM   #9
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6x6 deck posts to concrete slab


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Originally Posted by csiryan View Post
Why would a slab that thick not be good enough? The only alternative would be to cut the slab out, which would be less than desirable.
Where are you located?...ah you put Atlanta in as location
What are you building...roof or deck ?
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Old 11-16-2009, 09:23 AM   #10
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6x6 deck posts to concrete slab


depends on how FAR outside of atlanta,,, if you're like me in marietta, probably not a problem,,, if you're 1,500m north of atlanta, problem down here our footers're only 1' below grade since we don't have snowload or frost w/which to contend,,, however, we DO have windload uplift issues,,, good luck !
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Old 11-16-2009, 09:28 AM   #11
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6x6 deck posts to concrete slab


csiryan: There are many people on here that offer good advice backed by proper education and experience. Scuba_Davd, and 12penny, happen to be two of them, SULTINI I just don't happen to recognize (sorry). Give more details of your project and listen to them. It does sound as if you are planning a second story deck or roof. Personnally, I do think a 6" slab would hold up a 6x6 post, just not a deck or roof. Good Luck, David

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