When you hang sheetrock on a wall horizontally do you start with the bottom piece or the top piece? We were doing some volunteer work in Appalachia this weekend. The house had the finished laminate floor in so the walls were just shy of 8' tall. I was installing the top sheet first. The other team installed the bottom sheet first so they could rest the top sheet on the bottom. I always figured it was better to make any width adjustments at the bottom. I've seen pro-rockers do it where one guy can hang a 12' by himself. He'd start a nail or two in the top of the sheet that would hit the top plate. He'd lift it into place and then drive the nails he started to hold the sheet. Then they'd finish it off with drywall screws. As a 50 something desk jockey doing this as a volunteer we typically use 8's and two people to install them. Though had they bought us 12's I could have installed them.