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Stacked wood column connection

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milkshakelake

Structural
Jul 15, 2013
1,131
If I have a stacked wood gravity column with no uplift, I put the beams bearing on the column with a cap plate. So how do I connect the column above that? Especially if there's a floor deck and bottom plate in the way.

1. Is it the same way we connect studs to bottom plates (4-8d toenails per stud)?
2. If it's a bigger column (like 4x4, 4x6, 6x6 instead of multiple stud pack), is it still 4-8d?
3. In the case where there isn't a beam connection, should I use a squash column that's the height of the joist depth to really make it platform framing?
4. Let's say I use side loaded hangers (not my preference because of eccentricity). Do I stick the column up and splice it about 3' above floor level, similar to steel columns? Or platform frame it like everything else? I'm not sure when I'd ever use this, I'm just wondering in case it comes up on some kind of heavy timber project.
 
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1. If the post is within a wall, similar to a stud, I think the toenailing is pretty standard.
2. Usually if it's a free-standing column, for example a balcony post, I would see a 6x6 with longer toenails or toe-screwed into the column below. Other times I've used a BC60 or similar. You could also use an inverted CC66 type connection.
3. Yes. Block solid at the joist cavity. Always.
4. I typically don't use hangers for beam to post connections. I imagine a mass timber type building would use something similar to this.
 
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