Insulation behind/inside metal stud?

Hi all, first time DIYer here, working on mounting a TV on metal(?) studs. I’m in a NYC high rise apartment, built in the 2010s, ~40 floors. Planning on using 3/16” toggle bolts on the metal studs. First of all, I’m only 80% sure I have metal studs - I used a magnet and it had a weak attraction all the way up and down where the stud is, with a strong attraction every foot or so, which I believe lines up with having metal studs but I’m not sure? I drilled a 0.5” hole into the stud for the toggle bolt, and found some insulation on the other side. Just wanted to be sure that I didn’t miss the stud or anything? Drilling felt like how I think it was supposed to, went through ~3/4” dry wall and then hit some stronger resistance for a little bit before punching through (stepped HSS drill bit). I also checked, and there’s something firm ~3” into the hole, which I’m hoping is the other side of the stud. A little paranoid with my first project, just wanted to make sure I’m safe to put up the TV. Thanks all for any input! submitted by /u/Qognog [link] [comments]

Mar 13, 2025 - 22:35
 0

Hi all, first time DIYer here, working on mounting a TV on metal(?) studs. I’m in a NYC high rise apartment, built in the 2010s, ~40 floors. Planning on using 3/16” toggle bolts on the metal studs.

First of all, I’m only 80% sure I have metal studs - I used a magnet and it had a weak attraction all the way up and down where the stud is, with a strong attraction every foot or so, which I believe lines up with having metal studs but I’m not sure?

I drilled a 0.5” hole into the stud for the toggle bolt, and found some insulation on the other side. Just wanted to be sure that I didn’t miss the stud or anything? Drilling felt like how I think it was supposed to, went through ~3/4” dry wall and then hit some stronger resistance for a little bit before punching through (stepped HSS drill bit). I also checked, and there’s something firm ~3” into the hole, which I’m hoping is the other side of the stud.

A little paranoid with my first project, just wanted to make sure I’m safe to put up the TV. Thanks all for any input!

submitted by /u/Qognog
[link] [comments]