Step 3: Cut through the drywall screws

Cutting through drywall screws with a hacksaw blade, wrapped in tape at the end for a handle.
Photo: Kolin Smith
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Clear the opening of any loose debris and insulation. Slide a hacksaw blade, wrapped in tape for a handle, behind the exposed stud and cut through any drywall screws holding the wallboard to its back edge.
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    Tools List

    • studfinder
      Stud finder
    • utility knife
      Utility knife,
      to score drywall
    • keyhole saw
      Keyhole saw,
      to cut openings in wall
    • flashlight
      Flashlight
    • two-foot level
      Level
    • hacksaw blade
      Hacksaw blade,
      to cut drywall screws
    • hand saw
      Handsaw (to cut studs
    • rasp
      Rasp,
      to tailor the drywall opening to fit
    • drill
      Drill/driver

    Shopping List

    1. Medicine Cabinet: Look specifically for cabinets labeled "recessed," though a surface-mount cabinet can be converted into a recessed one, as long as its sides can slip into the wall cavity without obstruction.

    2. 2x4 Lumber: For the blocking, which makes the frame to which you'll fasten the cabinet. Use scraps if you have them, or one 8- to 10-foot piece should be enough.

    3. Construction Adhesive: To help attach the blocking.

    4. 21/2-inch Decking Screws: To fasten th blocking to the studs.

    5. 11/2-inch Drywall Screws: To hold the cut drywall edges to the blocking and to mount the cabinet.

    6. Caulk (as needed): To fill gaps between the cabinet frame and the wall.