Originally Posted by n0c7
It's been a few years since I've done electrical with steel stud's in residential. I'm about to do a job and I remember way back people adding a backing support of drywall or scrap 2x4's so the boxes don't flex.
If the wall is to be drywalled, I don't believe the box needs to be supported behind if the receptacles and switches are face mounted onto the drywall. Correct or no?
It is a good idea and a requirement that the box be mounted securely/properly.
And I have seen many installations where no extra support was provided and the boxes were solid. The conduit was assisting in supporting the boxes. Some inspectors will flag this.
I would use some of the metal framing laying around to make a bracket to mount the boxes to. Or buy some of the brackets shown above.
If the metal is gone, use a piece of 2x4. Drywall is not suggested for anything but its intended purpose.