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-   -   Stapling into engineered joists? (http://www.diychatroom.com/f19/stapling-into-engineered-joists-174977/)

Toller 03-19-2013 07:53 PM

Stapling into engineered joists?
 
I am hanging some ducts for my dust collection system and it would be nice to staple the plastic strap hangers into the joists.

I read their instructions, and while you can put some pretty big screws into the bottom, they recommend against putting anything into the sides.

I assume they mean screws; 18 gauge staples seem pretty harmless.
(I see neither the plumber or HVAC guy who built the house had any qualms about nailing into the sides, but they didn't pay close attention to code either...)
What do you think?

joecaption 03-19-2013 08:01 PM

You can use roofing nails, staples, screws, not going to have any effect on them.

A Squared 03-20-2013 01:38 AM

Depends on what you mean by "sides" . If you mean stapling into the side of the flange (the top or bottom of the joist) my understanding is that you're not supposed to do that as it splits apart the layers of the laminaated veneer lumber, sort of like nailing into the edge of plywood. If you're talking about stapling into the OSB web, the middle part between the flanges, it shouldn't compromise the joist, but the staple might not hold a lot of weight.

Toller 03-20-2013 10:20 AM

Quote:

Originally Posted by A Squared (Post 1141248)
Depends on what you mean by "sides" . If you mean stapling into the side of the flange (the top or bottom of the joist) my understanding is that you're not supposed to do that as it splits apart the layers of the laminaated veneer lumber, sort of like nailing into the edge of plywood. If you're talking about stapling into the OSB web, the middle part between the flanges, it shouldn't compromise the joist, but the staple might not hold a lot of weight.

I meant the flanges. Like I said, the instructions say not to do it (presumably for the reason you say) but a staple isn't much. I attached some cables to the web using wire staples and they don't hold very well; so I don't think they would hold my pipes at all.

The plumber nailed many of the pipe holders in from the side, but he didn't do other things right.

Actually I just put a screw hook in from the bottom and found it was easy enough to hang the duct from that; so I am good.


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