Drywalling Tip 3 - Use a file

You'll soon find that as you are hanging drywall that almost nothing is square and you'll have to "adjust" the edge of your sheet of drywall to get it to fit. I used to use a knife and try to trim it that way. What I found later is that a drywall rasp file worked faster and a lot cleaner. Sometimes the knife would get away from me and I'd cut too much the rasp gives you a lot more control.