How To Install An Interior Door In Existing Wall

How to Install an Interior Door in an Existing Wall

Installing an interior door in an existing wall is a project that can be completed by most homeowners with basic carpentry skills. With careful planning and preparation, you can add a new door to your home in a weekend or less.

Materials You'll Need

Before you begin, gather the following materials:

New interior door
Door jamb
Door casing
Shims
Wood filler
Caulk
Screws
Nails
Hammer
Drill
Screwdriver
Level
Tape measure
Circular saw
Jamb saw

Step 1: Measure and Cut the Opening

Begin by measuring the opening for the new door. The door jamb should be 1/2 inch wider than the door itself. Transfer the measurements to the wall and cut out the opening using a circular saw.

Step 2: Install the Door Jamb

Place the door jamb in the opening and shim it until it is plumb and level. Secure the jamb to the studs with screws.

Step 3: Hang the Door

Place the door on the jamb and insert the hinge pins. Swing the door open and closed to make sure it fits properly. If necessary, adjust the jamb or door until it hangs smoothly.

Step 4: Install the Door Casing

Measure and cut the door casing to fit around the door jamb. Nail the casing in place.

Step 5: Fill Holes and Caulk

Fill any holes or gaps with wood filler. Allow the wood filler to dry and then caulk around the door jamb and casing.

Step 6: Install Hardware

Install the doorknob, lock, and other hardware. Check the operation of the door to make sure it opens and closes smoothly.

Additional Tips

Here are a few additional tips for installing an interior door in an existing wall:

If you are not comfortable cutting the opening for the door, you can hire a professional carpenter to do it for you.
Make sure the door jamb is plumb and level before you hang the door. Otherwise, the door will not hang properly.
Use a level to make sure the door casing is installed correctly.
Caulk around the door jamb and casing to seal any gaps and prevent drafts.