"Owens Drywall" wall describes how to coat a drywall corner bead. 1. Fill pan with drywall. 2. Take a eight inch knife and use to spread the drywall on wall, starting from the bottom and working your way up. If you drop any on the ground, go ahead and pick it up with knife. 3. Go over the same spot multiple times from the bottom up to ensure the drywall is on evenly and clean!