Installing Split Jamb Prehung Interior Doors

Installing split jamb prehung interior doors can be a daunting task, but with the right tools and knowledge, it can be done successfully. Here are the essential steps to follow:

Step 1: Gather Materials and Tools

Before you begin, gather all the necessary materials and tools, including:

Split jamb prehung door
Door shims
Pry bar
Hammer
Level
Measuring tape
Pencil
Drill
Screws

Step 2: Prepare the Doorway

Measure the doorway and cut the jambs to the desired height. Remove any existing trim or molding from the doorway.

Step 3: Install the Jambs

Place the jambs in the doorway and secure them with shims. Use a level to ensure the jambs are plumb and square. Drill pilot holes and drive screws through the jambs into the studs.

Step 4: Install the Door

Lift the door into the opening and align it with the jambs. Drive screws through the hinges to secure the door.

Step 5: Install the Strike Plate

Mark the location of the strike plate on the door jamb and chisel a mortise to fit the strike plate. Install the strike plate with screws.

Step 6: Install the Trim

Measure and cut the trim to fit around the door. Install the trim with nails or screws.

Step 7: Paint or Stain

If desired, paint or stain the door and trim to match the existing decor.

Tips

Use a level throughout the process to ensure everything is square and plumb.
Don't overtighten the screws, as this can damage the door or jambs.
If the doorway is not perfectly square, you may need to use shims to adjust the jambs.
If the door is not closing properly, adjust the strike plate or hinges.