Interior doors can become damaged, difficult to operate or old-fashioned compared to the rest of the décor. Replacing an interior door is a one-day project for one or two people.
Step 6: Fasten the trim into place Use a utility knife to cut away excess material from the shims between the frame and the studs. Position the trim into place. Fasten the trim into place with 6-penny finishing nails. Use a nail set to counter-sink the nails below the level of the wood. Putty the nail holes with wood putty. Your new door is ready to be painted or stained to your liking. Cut away the excess shim.