In a reply to my own thread with a solution for those who are interested:
I ended up using a piece of white MDF type lumber from home depot 36" wide. I don't know if it's MDF but it sure isn't plywood. It seemed to be plenty strong. I spanned two metal studs that were 24" apart and used toggle bolts through the wood securing to the studs.
I then proceeded to bolt the mount to the wood with 6 3" or 4" lag bolts. The lags went through the wood and the drywall. I considered using more toggle bolts, but that would have been a lot more drilling and the lags were driven in with a socket wrench and a lot of torque so I was confident it wasn't moving.
I placed the 40" Bravia on the mount and swung it to it's fully extended position while I put some downward force and bounced it a little. The mount seemed to flex more than the wall. I did hear a little creaking in the wall was weight was added, but nothing more than I've heard when applying nearly my full weight to a flat or tilt mount. I'm not a fan of these articulating/cantilever mounts. They seem to have too much torque and weight too far away from the wall to make me comfortable.
The proper way to do this is to use Peerless' metal stud span plate, which, essentially does the same thing as this wood idea I had, but is made of plate steel, and costs $100.
I ended up using a piece of white MDF type lumber from home depot 36" wide. I don't know if it's MDF but it sure isn't plywood. It seemed to be plenty strong. I spanned two metal studs that were 24" apart and used toggle bolts through the wood securing to the studs.
I then proceeded to bolt the mount to the wood with 6 3" or 4" lag bolts. The lags went through the wood and the drywall. I considered using more toggle bolts, but that would have been a lot more drilling and the lags were driven in with a socket wrench and a lot of torque so I was confident it wasn't moving.
I placed the 40" Bravia on the mount and swung it to it's fully extended position while I put some downward force and bounced it a little. The mount seemed to flex more than the wall. I did hear a little creaking in the wall was weight was added, but nothing more than I've heard when applying nearly my full weight to a flat or tilt mount. I'm not a fan of these articulating/cantilever mounts. They seem to have too much torque and weight too far away from the wall to make me comfortable.
The proper way to do this is to use Peerless' metal stud span plate, which, essentially does the same thing as this wood idea I had, but is made of plate steel, and costs $100.
