Now it’s very easy to do this fast like the pros. Just make sure the edges of the sheetrock are nice and straight and even.
Use 1 1/2 long roofing nails or better yet, drywall nails. Don’t bang the nail in so hard that the corner bead is pushing out around the edges. Just tight. Start with a 6-inch taping knife and then after the first coat dries you can either use the 6 inch again or go right a 10 inch. And that’s how you install a corner bead on a sheetrock edge.
After the corner bead is nailed in, use a 6″ knife against the edge of the bead and the sheetrock about 2 inches away from the edge of the bead. You must see a gap under the knife. Run the knife the entire length of the corner bead making sure you keep the cap.
This gap is where you will install your joint compound.