"Sir, we'll be glad to mount that new Samsung you wanted. All you have to do for us is move to a house with studs on twenty-four inch centers."
Otherwise,
The custom expense to the client is significant.
Especially if it goes on a bearing wall.
Can you properly modify a bearing wall to make an 18" wide space without putting in a header? I've been looking online, but I can't find this. There's lots of info as to how to install a header, but I don't see WHEN you need to install a header.
