I am mounting a TV above my fireplace and I am getting a bit anxious about the stud we are going to attach the mounting system on to.
After struggling for a while to find the stud we used a thin nail to measure where the center should be, and found that the stud was at least 2 1/2 inches wide! we drilled in, and all seemed normal, but our drill bit (which extends 2 1/4 in) felt like it got past the wood (only for the last 1/4 inch or so). Is it possible this stud is wider and shallower than the rest? Is there a non-invasive way to test it? I am mounting a TV thats about 20lbs. The wall mount is a full motion one, can't tell how much it weighs. Is this "weird stud" likely sturdy enough to mount the TV on? Is there a way to tell for sure?