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-   -   Pressure Treated Deck Posts in Concrete Pillar? (http://www.diychatroom.com/f19/pressure-treated-deck-posts-concrete-pillar-147453/)

Nick914 06-18-2012 02:11 PM

Pressure Treated Deck Posts in Concrete Pillar?
 
Thinking of setting deck posts in concrete. 48" frostline. Can use tubes to ensure concrete is well above soil or crushed stones under deck. Would it help to wrap the timbers in plastc (below ground level?

oh'mike 06-18-2012 05:20 PM

Do not set the posts in concrete--they rot--cast a pier,using a sonotube--embed a post anchor into the wet concrete--

Buried posts do not meet modern code in most areas--

Joe Carola 06-18-2012 05:20 PM

Quote:

Originally Posted by Nick914
Thinking of setting deck posts in concrete. 48" frostline. Can use tubes to ensure concrete is well above soil or crushed stones under deck. Would it help to wrap the timbers in plastc (below ground level?

Why would you not sit them on top?

hotrod351 06-20-2012 01:33 PM

you set them on top so they can wiggle all over the place in a few years. i set mine in concrete, there not going anywhere then. i have used the big metal brackets that attach to the pose then go in the concrete about 1'. but i think the old tested true method of setting them in concrete works best for strength. what ever works for you and you feel the safe-fest with.

Joe Carola 06-24-2012 01:30 AM

Quote:

Originally Posted by hotrod351
you set them on top so they can wiggle all over the place in a few years. .

Explain that.

JetSwet 06-24-2012 06:53 PM

Your anchor rod goes in the wet concrete when wet then your bracket.

joecaption 06-24-2012 07:03 PM

http://strongtie.com/products/connectors/PB-PBS.asp

danpik 06-24-2012 07:14 PM

My pool deck has been sitting on concrete piers for 12 years now and they have not loosened up and wobbled around one bit. I have also built about 50 decks for customers the same way over the years and never had a callback to fix any problems.
I have repaired decks in the past that had the wood post set into concrete. The last one I did a couple years ago had 8 treated posts set ito 8" sono tubes. Every concrete pier was cracked from the corners out and most of them had rotted enough that they had to be replaced

thetalkingmule 06-25-2012 10:56 AM

Another vote for doing it the proper way by setting j bolts deep in the concrete footings with bracket on top. Keeps the wood 1" off the ground so it doesn't rot or wick standing water.


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