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Old 08-26-2010, 09:59 PM   #1
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building a deck.

I'm building a deck with a patio below. i'm using concreting cinder blocks as the columns or posts(2 blocks side by side, filled with concrete and rebar). The decking will be about 8 1/2' above the patio. is there any tricks to cantilevering the cinder blocks around the beam??? I'd like the columns to continue past the beam and support the railing.

Last edited by easygoin; 08-26-2010 at 10:02 PM.
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Old 08-27-2010, 07:09 AM   #2
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Why wouldn’t you use wood?

You can wrap your post in just about anything if there is some kind of look you’re trying to achieve.
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Old 08-27-2010, 08:12 AM   #3
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If you are located someplace that requires a permit to build the deck, and you are using a "non-standard" method of deck support, the entire structure likely will be required to be designed by an architect, structural engineer, or other appropriate licensed design professional.
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Old 08-27-2010, 09:25 AM   #4
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^^^^ what he said ^^^
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Old 08-27-2010, 12:19 PM   #5
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Here's a thought:

You could add cut 6" blocks to make the hole higher if you needed. (As shown in the lower pic) Tar paper can be used between block courses to contain the grout lift.

I've shown this column with two-cell blocks. If you used three cell blocks instead, you would not only have an easier time of controlling the grout lift, but you would also have that center cell filled with grout to submerge your beam anchors into. Those could be nothing more than long lag bolts protruding down from the bottom of the beam.

BTW, this is fairly common construction here in Florida. Our hurricanes aren't kind to mere wooden posts.
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