Thanks for your answer. Makes sense, just use more/longer screws.sometimewoodworker wrote: I'm not sure where you got the idea that you can't hang heavy items on a "thermal block wall" assuming that you mean an AAC block wall.
You just have to understand that AAC blocks are relatively soft so you need to use more attachment points and longer screws and plugs. If you do that you can hang the heaviest cabinet you like.
If your flatscreen TV has a small plate that you attach to the wall, then you will have to find a way to make it larger so you can spread the weight over a bigger area.
Got the idea that AAC blocks are too soft to hang things on from my builder when discussing what types of blocks or bricks to use.