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How big of a hole should I make for four 14-2 wires

346 Views 1 Reply 2 Participants Last post by  CodeMatters
Hi,

Currently, 4 12-2 Romex wires are hanging below a floor joist. If I want to make these wires go through a floor joist (2 x 10), how big of a hole should I make? Should I make one big hole or two small holes?

Thank you,
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I never run more than 3 cables per hole. In this case I'd drill 2 sets of holes
3/4"-1" each and pull 2 cables through each.
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