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Old 01-29-2010, 01:48 PM   #1
Joel
 
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Reinforcing 6x6 Pressure Treated Deck Posts


My deck is supported with 6x6 pressure treated posts which are about 4-5 feet tall. I noticed some vertical splitting of the posts which makes me a little nervous. I am wondering what would be the best way to reinforce these posts. Thanks in advance for any help.
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Old 01-29-2010, 03:51 PM   #2
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Reinforcing 6x6 Pressure Treated Deck Posts


some vertical splitting is normal and nothing to worry about. do you have pictures?

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Old 01-29-2010, 03:54 PM   #3
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Reinforcing 6x6 Pressure Treated Deck Posts


unless they are like half the width of the column dont worry about it at all. People used to frame houses with 2x4's 24" on center and those houses are still standing and I am sure they are all cracked pretty good. A 6x6 has a vertical compression limit much higher than anything you could ever put on it
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Old 01-29-2010, 03:56 PM   #4
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Quote:
Originally Posted by wnabcptrNH View Post
A 6x6 has a vertical compression limit much higher than anything you could ever put on it
*Bingo*

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Old 01-29-2010, 04:27 PM   #5
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Reinforcing 6x6 Pressure Treated Deck Posts


Here are the best pictures I could get of the splitting.
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Reinforcing 6x6 Pressure Treated Deck Posts-dsc04735.jpg   Reinforcing 6x6 Pressure Treated Deck Posts-dsc04734.jpg   Reinforcing 6x6 Pressure Treated Deck Posts-dsc04732.jpg  
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Old 01-29-2010, 04:31 PM   #6
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Reinforcing 6x6 Pressure Treated Deck Posts


thos 6x6's are fine but what the attachment detail to the deck beams? One of those pictures doesnt look right.
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Old 01-29-2010, 06:25 PM   #7
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Reinforcing 6x6 Pressure Treated Deck Posts


Yeah, what is attaching the 6x6 posts to the deck ?

Best method is cutting them, so that the joist are sitting on the post (not my deck)
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Old 01-29-2010, 10:03 PM   #8
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So many questions....... Extend the downspout roof water away from the buried posts so you don't get frost heave, posts shouldn't be buried, the doubler has a one foot piece on the end for strength? Did someone else build this? If you give more pictures from 6' away, we can help make your deck safer. Does the deck have the solid blocking required between joists over all bearing points that is missing in Dave's picture? Did you use surface pier blocks as seen under the shims in the picture? The splitting is normal, though the post bottoms may be in water.


Be safe, Gary
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Old 01-31-2010, 09:00 AM   #9
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Reinforcing 6x6 Pressure Treated Deck Posts


Here are some additional pictures of my deck's substructure. It is a two level deck as you can see, so some of the understructure appears a bit odd.
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Reinforcing 6x6 Pressure Treated Deck Posts-dsc04747.jpg   Reinforcing 6x6 Pressure Treated Deck Posts-dsc04746.jpg   Reinforcing 6x6 Pressure Treated Deck Posts-dsc04745.jpg   Reinforcing 6x6 Pressure Treated Deck Posts-dsc04744.jpg   Reinforcing 6x6 Pressure Treated Deck Posts-dsc04743.jpg  

Reinforcing 6x6 Pressure Treated Deck Posts-dsc04742.jpg  
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Old 01-31-2010, 09:01 AM   #10
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Reinforcing 6x6 Pressure Treated Deck Posts


A few more pictures . . .
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Reinforcing 6x6 Pressure Treated Deck Posts-dsc04741.jpg   Reinforcing 6x6 Pressure Treated Deck Posts-dsc04740.jpg   Reinforcing 6x6 Pressure Treated Deck Posts-dsc04739.jpg   Reinforcing 6x6 Pressure Treated Deck Posts-dsc04738.jpg   Reinforcing 6x6 Pressure Treated Deck Posts-dsc04737.jpg  

Reinforcing 6x6 Pressure Treated Deck Posts-dsc04736.jpg  
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Old 01-31-2010, 09:12 AM   #11
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Reinforcing 6x6 Pressure Treated Deck Posts


Usually metal brackets are used to attach joist to the beams
Are the posts on cement piers for support, not just sitting on the ground ?

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Old 01-31-2010, 09:49 AM   #12
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The posts are buried four feet into the ground with concrete. The post holes are 18" diameter (4 feet deep) - so there is a lot of concrete in each post hole.
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Old 01-31-2010, 11:19 AM   #13
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this doesn't look right to me.
Isn't there a building inspection done in your area?
those things are just hanging in mid air?
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Reinforcing 6x6 Pressure Treated Deck Posts-dsc04740.jpg   Reinforcing 6x6 Pressure Treated Deck Posts-dsc04742.jpg  
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Old 01-31-2010, 06:55 PM   #14
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holy crap did that pass an inspection? if so that inspector should be fired. Those support posts are toe nailed into the 2x support beams when they should be notched and lab bolted. Those supports are done completely wrong
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Old 01-31-2010, 06:57 PM   #15
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Yeah, I would not trust the way that is supported
Especially that "corner" joist hanging from a 1x
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