# Of NM Cables Through Each Hole In Joists? - Electrical - DIY Chatroom Home Improvement Forum

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Old 10-04-2010, 10:42 AM   #1
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# of NM cables through each hole in joists?

I am rewiring my house after a copper theft, special thanks to Vermont Mutual for denying the claim, thus forcing me to be my own electrician::>

I bought a great book from Home Depot that gives a simplified explanation of the NEC, but there are some items missing.

Some NM type cables are run through holes in the floor joists. Am I allowed to run many cables through the same hole, or is there a limit to the number of cables that can be run through a single hole?

I also have a few other simple and minor questions-but have posted them separately so that the title of the message accurately reflects it's contents.

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Old 10-04-2010, 05:16 PM   #2
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Depends on the size of the hole and the size of the cable, but I usually run 3.
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