I'm working on a projector theater project. I have the drywall up and have a projector mount drilled into the stud/joist. Problem I'm running into is "how can I finish the hole in the drywall where the mount comes down?" I'm looking for something similar to a cable pass through but larger so that the project arm can get through.
Or, do you have any ideas on how to finish the drywall where the arm comes out?