I am going to attach a piece of plywood across 3 studs and then attach the mount to the plywood, as described in the answer to Can I use 2x4s to extend studs so I can mount my TV?.
However, my wall slants inwards 8 degrees ("inwards" meaning that the bottom of the wall is further out than the top). How should I handle this so that the mount is ultimately vertical? One thought I had was to have a 2×4 cut to the right dimensions with one side having an 8 degree angle to match the wall. I'd then place this on the bottom of where the mount will go, ultimately leaving me with studs > 2×4 > plywood > mount on the bottom, and studs > plywood > mount on the top.
Is this the right approach?
Best Answer
Your approach sounds perfect to me. 3 tips: 1. Err on the side of thicker plywood. 3/4" sanded pine is what I'd be thinking. 3/4 MDF would probably do fine as well. 2. You can use pretty much any CAD program to tell you the correct angles/dimensions for the upper and lower wedge-shaped 2x4's. 3. Upper wedge? Yes, I'd cut a thin wedge of 2x4 to put at the top as well, so that the fasteners aren't trying to bend the top edge of the plywood as you draw them up tight.