6x6 Posts Vs 4 Ply 2x6 Posts? - Decks & Fencing - Contractor Talk

6x6 Posts Vs 4 Ply 2x6 Posts?

 
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Old 04-19-2015, 12:36 AM   #1
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6x6 Posts Vs 4 Ply 2x6 Posts?


Opinions? I still use 6x6 posts but I would say a good majority of guys in my area, especially the home builders... Are using 4 ply 2x6 nailed together for posts. Generally it's 3 boards seat the beam and the 4th is cut long to fasten the beam. Ta-daaa... No notching but same effect.
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Old 04-19-2015, 12:41 AM   #2
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Re: 6x6 Posts Vs 4 Ply 2x6 Posts?


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Originally Posted by FreshConst View Post
Opinions? I still use 6x6 posts but I would say a good majority of guys in my area, especially the home builders... Are using 4 ply 2x6 nailed together for posts. Generally it's 3 boards seat the beam and the 4th is cut long to fasten the beam. Ta-daaa... No notching but same effect.
What about water getting in between the "plys". Problem with moisture is it gets in faster then it comes back out. I'm about 99% positive my muni wouldn't allow it anyways.

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Old 04-19-2015, 01:04 AM   #3
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Re: 6x6 Posts Vs 4 Ply 2x6 Posts?


This is one of my concerns as well... In addition to the posts "delaminating" under pressure especially since they are simply nailed, not bolted.

I use this as a "why choose us" bullet point. But I can't help but notice that I am in the minority in my area. Everyone else is moving this way it seems. Even roof overhangs on houses are being supported by these 4 ply posts.
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Old 04-19-2015, 01:37 AM   #4
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Re: 6x6 Posts Vs 4 Ply 2x6 Posts?


I wonder if part of it is trying to find straight posts.

I haven't seen it and don't think I would want to try it for anything of consequence.

I remember using laminated 2x4's for pump Jacks and seeing them come apart. I don't think I would want a 20 foot deck post to delaminate.
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Old 04-19-2015, 05:33 AM   #5
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Re: 6x6 Posts Vs 4 Ply 2x6 Posts?


I gave up on 6x6 treated posts. Just couldn't find good ones. Went to laminated 6x6.

Are you talking about the laminated ones or the ones that are nailed together. Morton Pole barns used to use the ones nailed together. I think everyone uses the laminated ones now. For building, I order the ones that are treated on the bottom few feet and regular yellow pine on the top.
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Old 04-19-2015, 08:51 AM   #6
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Re: 6x6 Posts Vs 4 Ply 2x6 Posts?


Another example of why you don't hire 'home builders' to build your deck. For what it's worth, code on this is specific 6x6 or 8x8. I don't have any data on this but I can't imagine in any application that a few pieces of lumber fastened/laminated together perform better than a solid piece sized the same....just a gut feeling
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Old 04-19-2015, 08:54 AM   #7
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Re: 6x6 Posts Vs 4 Ply 2x6 Posts?


I deck I just finished had posts like that on the old deck that was pulled down. They were twisted and warped worse than any 6x6 I had ever seen and bowed real bad too. The bottoms were completely rotted out and there was pretty sever damage between the boards.
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Old 04-19-2015, 08:58 AM   #8
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Re: 6x6 Posts Vs 4 Ply 2x6 Posts?


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Old 04-19-2015, 09:12 AM   #9
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Re: 6x6 Posts Vs 4 Ply 2x6 Posts?


Here these guys make them, they are used as "vinyl hanger" said to have straight posts when making pole buildings.



Valley Lumber & Treating Co., Inc.
ULTRALAM Specialty Columns

I would have left the contact info here but what's the fun in that.


My favorite lumber yard has them in Toledo. Has either them or something very similar. I have seen them 1st hand look real nice.
If I ever get the chance to build me a big pole building they will be m y 1st choice.
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Old 04-19-2015, 09:26 AM   #10
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Re: 6x6 Posts Vs 4 Ply 2x6 Posts?


Lots of home builders do the nailed together 2x6s and then do a 12" build out for stucco wrap. I think it's hackish.
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Old 04-19-2015, 09:31 AM   #11
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Re: 6x6 Posts Vs 4 Ply 2x6 Posts?


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Lots of home builders do the nailed together 2x6s and then do a 12" build out for stucco wrap. I think it's hackish.
Quick and cheap is my guess
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Old 04-19-2015, 10:34 AM   #12
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Re: 6x6 Posts Vs 4 Ply 2x6 Posts?


I used some this week on a pole building.They are not exactly as you guys are thinking.These are pressure thread for the first 5 feet .Each joint is offset and finger jointed.Looks to me ass if they are laminated oversize and run thru a 4 sided molder.
All joints are perfectly flush.I may have a pic.
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Old 04-19-2015, 12:00 PM   #13
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Re: 6x6 Posts Vs 4 Ply 2x6 Posts?


The OP doesn't say anything about a special order laminated post. He's talking about nailing together 4 sticks of 2x6 on-site.

I wouldn't do it. It's a rot sandwich waiting to happen. I don't know about the treated doug fir but I don't have any trouble getting good SYP PT around here. BB&S is right near me though, we might have pick of the litter.
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Old 04-19-2015, 12:03 PM   #14
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Re: 6x6 Posts Vs 4 Ply 2x6 Posts?


These are not laminated posts I'm referring to. They are just as I described the.. Regular ACQ 2x6 nailed together. I think I have a pic I can attach later from my computer.

The estimate I was at the other day that a roof supported by these, which were then clad in tin, but bare below where the future deck would be. The neighbours deck had the same 2x6 posts. And like I said, pretty much all the new decks being built not by me have them. Haha.
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Old 04-19-2015, 12:07 PM   #15
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Re: 6x6 Posts Vs 4 Ply 2x6 Posts?


Quote:
Originally Posted by FreshConst View Post
These are not laminated posts I'm referring to. They are just as I described the.. Regular ACQ 2x6 nailed together. I think I have a pic I can attach later from my computer.

The estimate I was at the other day that a roof supported by these, which were then clad in tin, but bare below where the future deck would be. The neighbours deck had the same 2x6 posts. And like I said, pretty much all the new decks being built not by me have them. Haha.
I'm with Robert. It's "hackish" imo.
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Old 04-19-2015, 02:17 PM   #16
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Re: 6x6 Posts Vs 4 Ply 2x6 Posts?


Quote:
Originally Posted by FreshConst View Post
These are not laminated posts I'm referring to. They are just as I described the.. Regular ACQ 2x6 nailed together. I think I have a pic I can attach later from my computer.

The estimate I was at the other day that a roof supported by these, which were then clad in tin, but bare below where the future deck would be. The neighbours deck had the same 2x6 posts. And like I said, pretty much all the new decks being built not by me have them. Haha.
Let them do it, should make your pitch that much easier
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Old 04-19-2015, 03:19 PM   #17
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Re: 6x6 Posts Vs 4 Ply 2x6 Posts?


When I was considering a similar setup, the inspector told me that it's perfectly legal and code compliant, however, the deck is going to wobble with every single step.
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Old 04-19-2015, 03:24 PM   #18
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Re: 6x6 Posts Vs 4 Ply 2x6 Posts?


Did you ask what code he's referencing and how many decks he's built? I cringe every time you guys talk about inspectors, munis, etc. Outside city limits here there is no permitting process, haven't dealt with one in a couple years now
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Old 04-19-2015, 07:35 PM   #19
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Re: 6x6 Posts Vs 4 Ply 2x6 Posts?


Nope on that. I'll sometimes use fir instead of pt if the posts are getting wrapped and there is a roof over them. The pt just doesn't stay straight. Or come straight for that matter.
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Old 04-20-2015, 03:53 PM   #20
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Re: 6x6 Posts Vs 4 Ply 2x6 Posts?


thats one of the biggest things, the multi layers of wood grain help to keep things straight. PT stuff been so warpy lately. But simply nailed together isn't enough, they need to use lag screws or equivalent It may even be more bug proof, the copper PT treatments don't go that deep into a 6x6 either.

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