Step 6: Cover outside corners

•Make sure the metal corner bead on outside corners is nailed or clinched every 10 inches. Straighten bends, if necessary, with corner clincher (see “Tools,” far right).
•Using the 5-inch knife, smear one side of bead with compound. Repeat on the other side.
•Holding the blade against drywall and bead at the same time, run the knife down the corner, smoothing the compound in a single stroke. Repeat on the other side.
•Let compound dry overnight.
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    Tools List

    • drill
      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
    • 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