Step 5: Tape Inside Corners

Installing Drywall
Photo: Allen Penn
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•Using a 5-inch knife, fill the seam and cover 2 inches on either side of the corner with compound.
•Cut a piece of tape the full length of the corner; crease it in half lengthwise. With knife, gently push into corner.
•Starting in the middle, draw the knife along the drywall, smoothing the tape on one side of the crease. Skew blade 45 degrees to squeeze out excess mud.
•Run knife in the same way on the opposite side of the crease. Finish by smoothing back to the starting point.
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    Tools List

    • drill
      Drill/driver
      for blending compound
    • drywall tape dispenser
      Drywall tape dispenser
    • swivel head pole sander
      Swivel-head pole sander with drywall sandpaper
      for smoothing first coat of compound
    • sanding block
      Sanding blocks
      for sanding corners
    • mud box
      Mud box
      for holding small batches of compound and cleaning knives
    • drywall knife
      5- and 10-inch drywall knives
    • mallet
      Mallet
    • drywall corner clincher tool
      Corner clincher
    • shop vacuum
      Shop vacuum

    Shopping List

    1. Medium-grit sanding screen or drywall sandpaper for smothing first coat of compound

    1. Fine-grit sandpaper for smoothing second and third coats of compound

    2. Joint compound

    3. Paper tape