So I'm trying to replace the original entrance handleset door lock from my almost 100 year old house and after removing the old lock and patching up the holes. I looked inside the door jamb and realized the inside has nothing for the screw to catch, it's all hollow inside.
The original lock had some kind of metal block installed inside so the screws for the original faceplate had something to adhere to.
So now I have 3 inch screws for my faceplate that has nothing to catch. Is there something I can buy to install it inside the door frame?? Or do I need to somehow stuff wood blocks inside the door frame to install my faceplate?