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Old 11-28-2010, 11:31 AM   #1
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Installing pergola on raised deck.


Howdy

I am installing a 12 x 16 foot pergola on a raised deck. The standing posts on the high side are my problem. I want the posts to reach to the ground where they will be anchored to concrete footings.

The high side of the deck is about six and a half feet off the ground on one corner and seven off the other, and so any post installed from ground up would need to be over 14 feet high. The longest post I can find is 14 feet long.

Anyone have any ideas on how I can span a vertical distance of 14 to 16 feet?

Thanks

Dave

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Old 11-28-2010, 01:30 PM   #2
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Installing pergola on raised deck.


You can get 6x6 over 20’ long. Go to a real lumber yard. The box stores won’t have those lengths.

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Old 11-28-2010, 04:21 PM   #3
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Installing pergola on raised deck.


Ayuh,... Do the wood thing above the deck, 'n bolt in pipe supports below....
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Old 11-28-2010, 04:32 PM   #4
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Installing pergola on raised deck.


How do you mean pipe supports?
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Old 11-28-2010, 06:12 PM   #5
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Installing pergola on raised deck.


Ayuh,... A pipe, the appropriate length, 'n diameter could have flat plates welded to each end...
The top end could be lagged under the post, 'n the bottom end tap-coned to the concrete..
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Old 11-28-2010, 06:28 PM   #6
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Installing pergola on raised deck.


Do you think a eight inch diameter phone pole would do the same thing? I can get poles from craigslist and cut em to fit but have no idea how to work with pipe and welding.
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Old 11-28-2010, 06:45 PM   #7
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Installing pergola on raised deck.


What is the pergola made of and what size are the existing posts?
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Old 11-28-2010, 07:23 PM   #8
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Installing pergola on raised deck.


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Do you think a eight inch diameter phone pole would do the same thing? I can get poles from craigslist and cut em to fit but have no idea how to work with pipe and welding.
Ayuh,...Whatever trips yer trigger,...

I guess my point is, build yourself a separate foundation, directly under the pergola, instead of single piece construction...
Strong joints work just as well...

Btw,... I Love workin' with Steel...
Unlike Wood,.. If I cut steel to short, I can weld it back together, 'n start over,...
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Old 11-28-2010, 07:27 PM   #9
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Installing pergola on raised deck.


Daverimmer, any chance of taking a few pictures so we can see what you're talking about?
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Old 11-28-2010, 07:30 PM   #10
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Installing pergola on raised deck.


The pergola will be standard treated lumber almost like the deck. The deck is 12x16 and stands on nine posts and three double faced beams.
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Old 11-28-2010, 07:51 PM   #11
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Installing pergola on raised deck.


Sure thing. Will post a few of the deck and one of the opposed pergola
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Old 11-28-2010, 07:55 PM   #12
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Installing pergola on raised deck.


Here are pics of the deck and pergola. One shows the construction and the high side and the other is the finished deck and the low side.
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Old 11-28-2010, 07:57 PM   #13
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Installing pergola on raised deck.


Quote:
Originally Posted by Daverimmer
Here are pics of the deck and pergola. One shows the construction and the high side and the other is the finished deck and the low side.
Missed the high side one...
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Old 11-28-2010, 07:58 PM   #14
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Installing pergola on raised deck.


A pic taken yesterday showing the high side a bit better...
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Old 11-29-2010, 07:24 AM   #15
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Installing pergola on raised deck.


Stupid question, but why didn't you build the deck to fit the pergola? Is it too late to extend the joists? Could you reduce the size of the pergola?
Also, are those 6x6 solid posts or are they four pcs of 5/4x6? I see lines on them that suggest they are made up.

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