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i have a bit of an issue. I live in a 2 story house and I'd like to run 2 ethernet cables down to the first floor from my room. The issue is that when I drilled the hole, i drilled it diagonally through the joist and it eventually punctured my family room wall. Would it be alright to drill a hole in the joist from the bottom hole that would eventually meet the puncture hole halfway and create an opening for the cables? you can see the size of the joist from this angle Or would that destroy the structural integrity of the joist? this is the joist and drywall from a sideview. The red is the wood joist. The purple is the diagonal puncture I foolishly made. And the blue is the hole I'm thinking about making. But I need advice on if it's the best option. The drawing depicts a side view of the joist and drywall. The red is the wood joist. The purple is the diagonal puncture I foolishly made. And the blue is the hole I'm thinking about making. But I need advice on if it's the best option. I don't want my room crumbling..

mmathis
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Gagan Suie
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  • Since you've already made cuts in the drywall, why not route the ethernet cable over the front of the joist instead of through it? You'd need to make a channel between your two square holes, but you're going to need to patch things anyway, so what's a little extra? – CactusCake Jul 26 '17 at 21:27
  • @CactusCake I might actually just do that rather than making another hole at the bottom. I'll make a groove near the front of the joist to slip wires through. – Gagan Suie Jul 26 '17 at 21:52
  • Legally speaking, (and at least where I'm from) no holes or channels are permitted in the lower 2/3 of a horizontal supporting member. Essentially a hole at 2 inches from the bottom would turn a 10in joist into an 8in joist, and thus not meet the structural requirements. – Matthew Goulart May 28 '19 at 12:24

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