When done correctly, the result is a wall so flat that you cannot spot the seams. While professional drywall tapers make ... Step 5: Tape the inside corners. With the 6-inch knife, apply a thin ...

My son and I started hanging 100 sheets of drywall about ... compound in the seam with the fiberglass tape. You’ll then add another 1/16 of an inch with your second coat. Inside corners are ...