Project Guide

How to Finish Inside Drywall Corners

1
COAT BOTH WALLS CORNER DRYWALL COMPOUND
Coat both walls corner drywall compound -  Finish Inside Drywall Corners

Use a 6-inch joint knife to fill any gaps between the two walls with drywall compound.

2
APPLY DRYWALL TAPE
Apply drywall tape -  Finish Inside Drywall Corners

Tip: When working with tape, the longer the better, but you may have to experiment to find a length that is easy to handle.


  • Unroll several lengths of drywall tape to cover the corner, overlapping the ends.
  • Fold the tape in half along the crease made by the manufacturer.
3
PUSH TAPE JOINT COMPOUND
Push tape  joint compound -  Finish Inside Drywall Corners
  • Draw a knife along each wall to press the tape into the compound about every 12 inches.
  • Remove excess mud.
  • Let the compound dry overnight.
4
APPLY JOINT COMPOUND ONE SIDE CORNER
Apply joint compound one side corner -  Finish Inside Drywall Corners
  • Using the 6-inch joint knife, apply joint compound to one side of the corner.
  • Feather the outside edge and let it dry overnight.
5
APPLY JOINT COMPOUND OTHER SIDE
Apply joint compound other side  -  Finish Inside Drywall Corners
  • Once the first side is completely dry, apply joint compound to the other side.
  • Smooth, feather and let dry.
  • Repeat the process to apply a third coat on both walls, one wall at a time. Let dry overnight once more, and then sand and smooth.