Hey Guys does anyone in in new jersey know if grommets are required for low voltage cabling going through the top of studs ? Thanks in advance

If you're talking about metal studs, then for sure...

Yes they are

Thank you very Much I appreciate it

And it's not just Jersey. Did you also know that if the space above is an air handling space you can't use plastic "grommets"? We use 1/2" die cast chase nipples. Just drop them in the 7/8" hole you just made with a hole saw.

-Hal

I should have known that but it never came up. doh!

I wonder if the make plenum rated comments? Need to see if they do.

I don't think 1/2 inch nipples would be big enough. I like at least a 1" inch nipple. The bigger the nipple the better! I guess it's a personal preference.

Whatever floats your boat.

-Hal

Don't forget Nail Plates where necessary.

thanks again Guys

Don't forget plenum ty wraps and the NJ low voltage exemption certificate.

We're talking steel studs here.

-Hal

Hal, has there ever been a situation where you needed to install your cable closer to a wall due to, say, plumbing than 1-1/4"?

I don't trust drywall installers.

Not saying it couldn't happen but I've never seen the need for nail plates with steel studs. The 1-1/4" rule still applies but there is always a way to easily re-route a cable to avoid those situations where you can't maintain it.

-Hal

If you need those things you're talking about, and can't find them under "grommet" that's because they aren't grommets. They're bushings.

That's why I put grommets in quotes.

-Hal

I use Arlington brand snap-in bushings on the top of studs, inside panels, etc. 1/2 or 3/4 inch most commonly found at the supply houses. Have also used the red stud bushings to go between stud bays.

I use these whenever pulling cable through metal studs




I like to use these when I have to enter or exit drywall when a box isn't required and it's about a drop ceiling.



These are all called gromments too