Measure the remaining Room, incorporating one/four inch for a lot easier installation. Mark and score the front side of the second drywall panel. Snap the front side (gypsum) and Lower the paper backing by using a knife; clean tough edges using a rasp. A rasp can be a tough file https://damienqa9f0.dailyhitblog.com/37713718/gypsum-board-installation-for-dummies