portnux t1_j2ebvsr wrote on December 31, 2022 at 5:07 PM

Cut sections of drywall ~3” wide and glue/screw around the hole so that 1/2 of the pieces extend into the hole to support the patch. Then attach the patch, so it’s supported all the way around as well as to the joist. Then finish it out.

jrab3717 OP t1_j2eclbe wrote on December 31, 2022 at 5:12 PM

There's nothing behind the edges, where you see screws are where the joists are

buildyourown t1_j2ee4ju wrote on December 31, 2022 at 5:22 PM

If all 4 sides of your patch are supported, you are good to go. Use setting mud, and fiberglass tape for your first coat.