1.   Choose metal or solid wood over hollow doors, and install a sturdy dead bolt or rim lock, which is hard to pick.

2.   How can I insulate the hollow door?

3.   Q. I would like to mount towel rack brackets in a standard six-panel, hardboard hollow door.

4.   Q. The hinges on my hollow doors are in pretty bad shape, dark and pitted.

5.   Since hollow doors have thin panels of wood covering the hollow core, you will have to choose a molly anchor made especially for hollow-doors.