I have an arch window on gable wall of my upstairs garage apartment. The window is recessed about 4" from the finished interior wall. The diameter of the window is about 6'. I had planned on finishing this with either bendable drywall or by cutting kerfs in some playwood and then making some arch trim. I do not have access to any bendable drywall and would like to avoid cutting the kerfs and then having to make an arched trim to match.
Is there anyway that I can bend regular drywall or does anyone have any other great ideas for finishing and trimming this window.