Here you’ll learn how to remove and install sheetrock the right way. Yes, there is a right way and wrong way to install sheetrock. Most would go the easy way and stand them up or start from the bottom. Standing them up may seem easy but then you’re hoping that all your joints line up 100%. And not to mention you’ll have a lot more taping to do.
This is why I and any professional rocker will hang sheetrock horizontal. First when you install the first piece “the top one” you’ll be able to make a nice tight joint up against the ceiling sheetrock. and really limit your seems.
And if your wall is not 1000% straight you’ll sure to bring out the demons if you hang the sheetrock up and down. Taping a joint placed on a stud that is not 100% is just nuts.
Always try to use the longest board you can, from one wall to the next. And yes you can buy sheetrock in lengths of 8, 10, 12, 14 and 16 feet long. But not from the home stores. they only have 8’s and maybe you’ll find 12’s.