I had to cut a standard door (30x80) down to a custom size to fit into a custom opening for a renovation project. On the hinge side, I had to remove enough material that I am now past the solid plywood (?) on that side and the particle board (?) interior is exposed.
Is it OK to simple notch out for my hinges directly into the particle board? Should I be trying to replace the wood somehow?
I'm concerned because the door is not hollow and is very heavy, so I will be installing 3 hinges for sure and want the install to be solid.