I’ve just bought a home built in 1956, and the hollow core interior doors are swollen and cannot be closed. Can hollow core doors be shaved off at the top like solid wood doors? -Janie
Hollow core doors typically have about one inch of solid wood at the top and bottom, so you should be able to trim a bit off to make them close properly. Your options are to use a hand plane, power plane, or belt sander to remove a small amount of stock, and a circular or hand saw when taking off an 1/8” or more.
Watch our video on How to Trim a Door to find out how to cut off a door using a circular saw and homemade guide.
Good luck with your project,