How To Convert A Window To A Door: Interior And Exterior Demolition Guide

Accomplishing the demolition phase of window replacement with a door by the do-it-yourself person is easier if advanced planning has taken place.

Accomplishing the demolition phase of window replacement with a door by the do-it-yourself person is easier if advanced planning has taken place. This advanced planning includes gathering the materials and tools needed for this project. Along with the materials and tools needed, the do-it-yourself person needs to be aware of the steps necessary to accomplish this task safely and correctly.

The materials needed for this project are a utility knife to score the caulking around the window, a pry bar to remove the window frame and stool. A tape measure, the replacement door, a hammer to remove the window plate and studs, a wooden block, and a reversible drill with a screwhead bit to remove the screws found in the edge of the window frame. Saws needed are a drywall saw to remove the drywall, a reciprocating saw to cut through any nails and a circular saw to remove the exterior siding.

The first step for this project would be to determine if the window frame is mounted over vertical siding or under lap siding. If the window frame is mounted over vertical siding, the siding will not need to be removed in order to remove the window. If the window frame is mounted under lap siding, remove the siding around the window.



Now use a utility knife and score the caulking around the window trim. After scoring the caulking, if there are screws found in the window frame, use a reversible drill along with a screwhead bit to remove them. The next steps are to carefully use a pry bar and remove the window trim. After removing the window trim, remove enough dry wall from the sides of the window opening to measure from wall stud to wall stud. While on the outside of the window, measure for the height of the door from the deck to the top of the window and mark the measurement on the siding. This measurement will be important when determining how much siding to remove. Now measure the jamb width of the window to measure for the thickness of the wall, this measurement will be used later when building the doorjamb.

Move back inside the house and use the pry bar to remove the stool from the window. After removing the window stool, carefully remove the window sashes from the guides. If any nails are present in the top and side jambs, cut through them using the reciprocating saw. The window frame is now ready to be knocked loose using a hammer and a wooden block. Carefully remove the window after the window frame has been knocked loose.

The last step in the demolition phase of this project is to use a drywall saw to remove the drywall located at the base of the window opening. Remove the dry wall using the door dimensions measured earlier. Use these same dimensions to remove the exterior siding using a circular saw. The final step is to remove the foam board and the 2x4 plate with a hammer. After completing these final steps, the project is ready for the next phase.

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