How to Fill in a Doorway
- 1). Remove the molding from the doorway using a pry bar and discard it or save it for use elsewhere.
- 2). Measure the doorway's height and width with a tape measure.
- 3). Measure and cut two pieces of 2-by-4-inch lumber to fit horizontally across the top and bottom of the doorway, then measure and cut two or three pieces of 2-by-4-inch lumber to fit vertically in the doorway.
- 4). Fit the studs into the doorway and fasten them to the doorway frame using screws and a screw gun.
- 5). Measure the doorway again, then measure and cut two pieces of drywall to fit over both sides of the doorway using a drywall saw.
- 6). Fasten the drywall to the studs in the doorway using drywall screws and a screw gun. Then tape the seams between the drywall sheet and door frame with drywall tape. Spread joint compound over the tape using a drywall knife, then sand smooth with medium-grit sandpaper once the compound has sufficiently dried.
- 7). Lay drop cloths on the floor, then prime the drywall with interior primer using a roller. Paint the drywall thereafter with a matching paint to finish filling in the doorway.
