[jailbird371]

Is there a limit to how many 12/2 wire can be run through a 3/4" hole drilled in my ceiling joists? Is 3 or 4 ok?

 

[qbert]

2 wires

 

[300zx]

Code does not directly address the number of cables that can pass thru a hole.Look at this thread http://www.diychatroom.com/f18/allo...-romex-cable-through-single-hole-joist-10752/

 

[Speedy Petey]

Up to FOUR 12/2 cables can be run without regard for ANY derating, if this is even an issue in the first place.