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Is it okay to run more than one wire through a hole in a joists? Suppose the hole is 1 1/4" ...permissible to run two wires through it?
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yeah but an inch and a quarter hole is kinda big for a joist. I wouldn't go much bigger than an inch or even seven eighths inch. two or three can be drawn through them. any more and the derating rule takes effect. -
Floor joists
It's a 7/8" Nail Eater bit. My eyeballing wasn't as good as actually measuring....
Thanks, HayZee....Comment
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yeah, the nailer eater auger is what I use.Comment
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