Installing a 77 lb TV on drywall over the fireplace
So I need to install this 77 lb that I have over the fireplace, where it looks like there is only one stud, which is in the middle of the wall where I can't use it for the mount. I have this mount http://www.amazon.com/gp/product/B004R9AUOG and it comes with screw holders for dry wall (or toggle bolts). A video of the mount and how to install it is at http://www.youtube.com/watch?v=dKsaaS1_d4E, around minute 5 is when it describes the drywall installation.
I am just wondering if someone who is expert in this kind of stuff can say this is a safe procedure or not.
by the way, my dry wall is 0.5 inch. I know about cutting the drywall and installing wood blocks (how much does it cost?), but I am just wondering if the procedure shown in the video is safe and maybe I don't need to go through the trouble of cutting the drywall and then paint and ....
I have a similar TV weight on a (much beefier) mount. I would never in a million years consider trying to hang 77 lbs on a sheet of drywall.
If you are going to cut out drywall and reinforce the wall, the cost is minor. A bucket of joint compound is around $5, 2x4's are about $2.50/8ft and the screws are about $5/lb. The major cost is your time and sanity.
Don't forget that you'll also need spray texture, sand paper, paint and cleaning supplies to clean up drywall dust.
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