I'm planning to mount my 65" Samsung S95B TV on a cinderblock wall in my townhouse, but I'm a bit worried. The wall is 6" thick, and a lot of mounts I see online recommend a minimum of 8" solid concrete for safety. My TV weighs 48 lbs, and I'm considering using Snaptoggle screws for the hollow spaces and Red Head anchors for the solid parts. There's drywall on top of the block, so I can't find any mortar lines. I normally see mounts that need 4 bolts, but I'm thinking of going with 6 for extra support. Does this sound like a safe plan?
4 Answers
If you find any solid spots without voids, consider using expansion wedge anchors. They really grip well in solid materials, which will help in providing extra support for your TV mount.
For a successful mount, pre-drill your holes, clean out the dust, then install your lag bolts with the anchors. It’s pretty straightforward; I've done it at least a hundred times. You can check out these lag shields from Home Depot—they work perfectly! [Crown Bolt Lag Shields](https://www.homedepot.com/p/Crown-Bolt-3-8-in-x-1-3-4-in-Zinc-Alloy-Short-Lag-Shield-15-Pack-10401/202518541).
It should be fine! Honestly, I'm shocked that any mount would insist on a minimum of 8" of solid concrete. I once hung a 328-pound powerwall on a 6" poured concrete wall, so your 48 lb TV is no problem. I'd recommend using toggles as they’ll give you a secure hold. Just check if your wall was filled during construction—if it was, it’s all solid!
Yes, you can definitely mount it that way! Consider securing 2x4s to the wall where you find solid areas, then attach your TV to those. Space the anchors out evenly for safety. If you paint the 2x4s to match your wall, it'll look nice too! I've seen others do this successfully when studs are further apart.
Sounds easy! Just make sure you’ve got the right tools and take your time.