/diy/ - Do It Yourself

>>1482196

You could use a larger piece of 3/4" plywood as a backer. That way you could put more lags into the 2x4 or into the sheetrock.

This is how we mount heavy equipment to walls.
Plus it might be easier to mount the TV bracket that way.
While you are there cut a pocket for a "recessed outlet" and run some network and audio cable down to the baseboard through the wall..