I am mounting a TV on a wall (see photos). There is a 7/8 inch gap between the drywall and the exterior, and a single metal vertical stud (Florida) as indicated. I want to center the TV, which is also indicated. I generally use toggle bolts for mounting on interior walls, but I do not think the gap is deep enough for them to open.
How should I mount here?
Should I take advantage of the concrete (cinder block?) exterior wall?
Best Answer
I would definitely take advantage of the block wall. I would use 2-1/2" tapcons with 1/4" fender washers straight through the drywall and than through some type of 7/8" spacer, and finally into the cinder block. The 7/8 inch spacer will prevent the screws from collapsing the drywall as the screws are tightened.
It would be best to use the largest TapCon fastener available. I believe they market a 1/4 inch diameter screw that has 3 versions: Flathead, Roundhead and Hex-head (hex's are easiest to grip and drive). The 1/4 inch screws will need a 3/16 inch concrete bit. I would use 4-8 of them depending on TV weight.