[blueraven]

What is the best way to patch around this box for clean and tight finish?

The box has roughly inch wide flanges on right and left side. No flanges on top and bottom.

 

[picks drywall]

looks like studs there, so put a piece of drywall on it.?. screw chunks of stud (vertical), one each, top and bottom for extra strength. precut box hole and mud what you need to. simple patch

 

[blueraven]

You wouldn’t try to get the drywall behind the flanges on the right and left side?

one thing not shown in picture is on right side flange there are gaps (see photo attached). Any thoughts on filling those?

 

[picks drywall]

i would think the cover would overhang the box at least 1/4"?

 

[blueraven]

Cover goes to the edge of the flange, no overhang. Supposedly box is supposed to go in before or after hung. If the box goes in after drywall hung, then how would they connect all the conduits?

 

[Yunggranmassa]

What is the best way to patch around this box for clean and tight finish?

The box has roughly inch wide flanges on right and left side. No flanges on top and bottom.

View attachment 41890

Hell I'd either take metal studs, cut me some brackets, & shoot them to the block wall so I could fasten short pieces of stud to them, and sew in a few backers to the existing rock where I could-- or, just shoot some hat channel up, fasten 3 layers or so of 5/8's to that using long drywall screws & rock-to-rock screws; then I'd build fast set around the edges, tape it all, fill everything in with hotmud, & skim the wall with regular mud. That's my thoughts. I'm just a North Alabama Rockstar always figuring things out the fly.