How to Apply Joint Compound to the Edges of the Ceilings & Walls

Hanging drywall yourself saves money, allowing you to free up money for other projects around the home. Achieving a finished, professional look on the edges of your newly drywalled surface is possible without the need for specialized equipment or professional intervention. You can finesse the corners correctly to create a seamless look on all the edges of your project.

Adhesive drywall tape
Finish knife
220-grit sandpaper
Tack cloth

Instructions

- 1
  Measure the length of the wall or ceiling edge. Use this measurement to cut a piece of adhesive drywall tape to fit the edge.
- 2
  Apply the adhesive drywall tape to the desired edge. Run your hand down the tape to ensure its effectively adhering to the surface. The drywall tape creates a smooth finished edge by giving the joint compound something extra to adhere to.
- 3
  Load a finish knife with joint compound. Apply the joint compound over the adhesive drywall tape, moving from the edge toward the wall. Continue to work the joint compound out approximately 3 to 4 inches on the wall, easing the pressure as you feather the edges.
- 4
  Allow the joint compound to dry for at least 24 hours before sanding it smooth with 220-grit sandpaper. Wipe away the sanding dust with a tack cloth.

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