I have a room that was formerly two rooms. The house is 70-90 years old. The walls are plaster. Between the damage from knocking out the wall, and the 7 different plaster textures that exist in the now single room, I figure it would be easier to put up strapping and mount wallboard over the plaster than to repair and skim all the plaster. I've discovered stud sensors don't work through plaster and lath. My idea is to cut a groove, maybe 1" high, circling the room near the bottom of the walls and another near the tops, so I can look and know exactly where the studs are. Would this cause any structural problems to the existing plaster? I would hate to have stuff collapsing under my wallboard.
Thanks for any advice provided!