~Shado~
Senior Member
- Location
- Aurora, Colorado
what software did you use for that nice illustration?
I agree....what software?
what software did you use for that nice illustration?
There is no requirement for 1 1/4" setback from the face of the stud when using metal studs and MC cable.
I agree....what software?
It sounds like the same method I use for NM when finishing a basement. Instead of drilling holes in all the studs, I just run the NM in the gap between the framing and the foundation.
There are some who say my method of support the cable is not listed, therefore would not pass inspections.
may be quicker to zipty to the stape then rig up the RX
Steel studs are not framing members?
What specific article would you cite to say that MC cable through a steel stud hole requires 1 1/4" of setback?
That is a very common method, I am not sure what your concerns are.
Same here......
The main difference is that there are already holes in the metal studs. Why not just pull the MC throught the holes and call it a day???
'Cause then you need them plastic bushing thingies, and some brands of MC pull in one direction only. :grin:
True, the wedge-wound stuff can be pulled in both directions, but I hate it when you get 50' through the hole, then it binds and pulls the jacket apart. Or worse yet, pulling it the wrong way through a long wall of metal studs - even with plastic bushings it's a nightmare. It's much simpler to go to the other supply house and get the smooth wound MC
what software did you use for that nice illustration?
I agree....what software?
Looks like plain old MS Paint to me.
What specific article would you cite to say that MC cable through a steel stud hole requires 1 1/4" of setback?
Try 330.17
300.17 sends us to 300.4(A), (C) and (D).
But 300.4(A) only applies to wood framing members so when MC is run through holes perpendicularly to the framing members there is no 1.25" set back requirement.
However 300.4(D) applies to all framing members so if MC is run parallel to framing members there is an 1.25" setback requirement. :smile:
300.17 sends us to 300.4(A), (C) and (D).
But 300.4(A) only applies to wood framing members so when MC is run through holes perpendicularly to the framing members there is no 1.25" set back requirement.
However 300.4(D) applies to all framing members so if MC is run parallel to framing members there is an 1.25" setback requirement. :smile:
That's it in a nutshell. Use a Colorado Jim or other method to keep 1 1/4" off of the stud when running parallel and you're good. Even with 1 5/8" metal studs and rock on both sides you can run through the holes without the 1 1/4" setback.