- Berthoud, Colorado
- Journeyman Lineman / Distribution design and EC in my spare time
I have been told my whole career that you can only run two romex through a hole in a stud. You are allowed to run as many wires as you want through a nipple, under 18" without derating the conductors. So as long as the studs don't add up to more than 18" you should be alright....? I ask because a buddy ran like 8 conductors through studs coming out of the breaker panel.