Drywall – How to corner bead around two layers of 5/8″ drywall

corner-beaddrywall

Here it is:

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I still have yet to shave down the rough edges from when I scored and snapped it, but, after that, what can I use for corner bead?

It's entirely possible that I will end up putting up a second layer perpendicular to these two layers so that I will be able to use regular corner bead, but, if I don't need to then I will need to find some way to finish this corner.

Best Answer

I was able to find up to 2 1/2" wide corner bead at Home Depot. According to my calculations (5/8" + 5/8" + ~1/2" = 1 3/4"), this should be more than wide enough to cover your corners.

The nice thing about paper-faced/backed corner beads, is that you don't have to use nails or screw to install them. You install them the same way you would tape a normal seam.

  • Cut the corner bead to length.
  • Apply a layer of mud (joint compound) with a taping knife to the corner (both sides).
  • Firmly press the corner bead into the mud.
  • Allow mud to dry.
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