2torial #0658: Learn2 Patch a Hole (Continued) Method 2: Gypsum Board Wall Create two braces for the patch Cut two pieces of the 1" x 3" lumber so that they're about 6" longer than the opening.   Hold one piece of lumber behind the opening in such a way that it extends equally above and below the opening. Half of its width should be visible where you're holding it.   Drive a screw into the wall, so that it pierces the upper portion of the lumber behind the wall. Repeat this with a second screw at the bottom of the lumber. Screw them down so that the screw heads are depressed, and not flush with the wall surface (but don't tear the gypsum board surface).   Repeat the last two steps with the other piece of lumber, so that you have two braces to screw the new piece of board into.   Method 2 - Step 3