Wood column on CMU wall

[JStructsteel]

Trying to figure out if a wood column on top of a CMU wall is do-able. Would be lightly loaded (less than 1K) and subject to wind. I was thinking a simpson MPZ base or a Permacolumn embed. Anyone ever do anything like this?

Any other thoughts? Make CMU wall cantilever?

 

[jayrod12]

Can we get some sketches?

 

[JStructsteel]

Looking more into the MPZ base, its not going to work due to edge distance requirements. The perma-column is this

https://permacolumn.com/products/sturdi-wall-brackets.html

In wall cantilevered pedestal might be an option. Or bury the column into the wall.

Thanks

 

[Enable]

Definitely doable but an MPZ base probably won't work unless you have an unusually large CMU since side clearance is on the order of 4" minimum (not sure about the other product you mentioned perhaps it has less side clearance requirements?).

But definitely done this before and can be made to work. I custom designed a bracket out of steel the last time I did and changed the CMU at the embed location to concrete (wasn't architecturally exposed so no problem for a couple courses to be concrete).

jayrod12 is on it. Sketches would help us figure out the best approach here!

EDIT - Sorry looks like you posted while I was making this

 

[dik]

Isolate the wood from the masonry to reduce dryrot...

Rather than think climate change and the corona virus as science, think of it as the wrath of God. Do you feel any better?

-Dik

 

[dik]

I've use a detail similar to this if no uplift or moment with the pin going into concrete and a hole drilled in the end of a timber post.

Rather than think climate change and the corona virus as science, think of it as the wrath of God. Do you feel any better?

-Dik

 

[phamENG]

I'd go with a cantilever masonry wall and just pin the post to it. Fixing the post to the wall will be almost impossible without embedding it, and that has serious durability issues. Your permacolumn looks like it should work, or just a Simpson post base.

Simpson has a product that matches dik's detail, but it uses their set 3g epoxy in both the wall and the wood to give uplift resistance.

 

[JStructsteel]

Thanks all. I think I will look at a cantilever column/wall and pin base on top.