You need to know the exact composition of your 'concrete' wall.
If its CBS you must avoid mortar joints and best strength is not near the center of any block, you drill into a web.
In my case, I had a solid (reinforced concrete) perimeter cap beam above CBS and frame construction above that.
I had to insure that the top (of three) lag bolts was securely into the cap beam. This was the mount I had to use:
https://smile.amazon.com/Made-Amazon-Sanus-Full-Motion-Mount/dp/B073QWRVL3/ref=cm_cr_arp_d_product_top?ie=UTF8
My Wall did not allow for other than a vertical alignment of mounting bolts. The top lag bolt takes most of the stress.
I had taken photos during construction, as all the details were now hidden behind a final layer of insulation and dry-wall.
The 'studs' (1 x 2 wood) between Concrete and CBS were in no way sufficient to hold mount, they just provide space for insulation and for attaching dry-wall, but they were very important as a spacer and I had to be sure to mount with the bolts centered over their location.
My alternative (had I not known construction details) would have been to remove dry-wall and insulation down to concrete. This would have also cost me a couple inches of my mounts extension arm's distance from the wall.
Art
If its CBS you must avoid mortar joints and best strength is not near the center of any block, you drill into a web.
In my case, I had a solid (reinforced concrete) perimeter cap beam above CBS and frame construction above that.
I had to insure that the top (of three) lag bolts was securely into the cap beam. This was the mount I had to use:
https://smile.amazon.com/Made-Amazon-Sanus-Full-Motion-Mount/dp/B073QWRVL3/ref=cm_cr_arp_d_product_top?ie=UTF8
My Wall did not allow for other than a vertical alignment of mounting bolts. The top lag bolt takes most of the stress.
I had taken photos during construction, as all the details were now hidden behind a final layer of insulation and dry-wall.
The 'studs' (1 x 2 wood) between Concrete and CBS were in no way sufficient to hold mount, they just provide space for insulation and for attaching dry-wall, but they were very important as a spacer and I had to be sure to mount with the bolts centered over their location.
My alternative (had I not known construction details) would have been to remove dry-wall and insulation down to concrete. This would have also cost me a couple inches of my mounts extension arm's distance from the wall.
Art
