Where do you start when hanging drywall? Portsmouth, NH 00210 (855) 916-2991 The first step to hanging drywall is to take a pencil and mark on the floor and ceiling the placement of the vertical studs. This will simplify the attachment of the drywall panels to the framing. While amateurs often install drywall panels vertically, . Holtsville, NY 00501 (855) 916-2991 The first step to hanging drywall is to take a pencil and mark on the floor and ceiling the placement of the vertical studs. Agawam, MA 01001 (855) 916-2991 The first step to hanging drywall is to take a pencil and mark on the floor and ceiling the placement of the vertical studs.