Intro to how to drywall Photo 1: Fasten backers at corners Fasten wood backing wherever drywall ends have no support within 4 in. Make sure to check corners and ceiling/wall joints. Photo 2: Measure carefully Measure from the end of the ceiling to the middle of a joist and cut the sheet to length. End cuts should split framing members. Gaps at ends and splices should be less than 1/4…