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Posts on conventional deck question #35818 10/10/20 11:57 PM
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134V Offline OP
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I am building a small 18' x 24' barn using rough sawn hemlock. I have built a conventional deck using KD Douglas Fir for perimeter beam and joists. I've used rough sawn 2x8 hemlock for decking. My posts will have stub tenons to attach to the built up perimeter beam.

Question - Should I sit my posts on top of the 2x8 decking or should I have the posts rest directly on the perimeter beam? 

Thanks,
Mike O' 

Re: Posts on conventional deck question [Re: 134V] #35819 10/12/20 07:59 PM
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Jim Rogers Online Confused
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We've always set the post on blocking below the deck so that there is enough support for the load coming down the post from above.
Setting on the decking may not be the best. It will depend on the load on the post. The decking may not support the load and that would mean that the decking would/will crush under that load.
Good luck with your project.


Whatever you do, have fun doing it!
Re: Posts on conventional deck question [Re: 134V] #35820 10/12/20 08:03 PM
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Whatever you do, have fun doing it!
Re: Posts on conventional deck question [Re: 134V] #35829 10/19/20 03:45 PM
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We usually go directly to the framing. But sometimes in other circumstances, we'll put it over the floor decking (typically 3/4" Advantec which is not going to crush).

Re: Posts on conventional deck question [Re: 134V] #35842 10/21/20 10:33 PM
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In the past I have placed posts directly on the rim joists and put the decking around them (as in Jim's picture). I was going to try it the other way this time but since your input, I think I'll stick to what I know works. Thanks guys..

Mike O'

Last edited by 134V; 10/21/20 10:35 PM.

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