Step-by-Step Instructions and Pictures: How to Use a Trim Nailer Gun

Blowouts: Watch the Angle
Problem: Nail Blowout
Solution: Angle The Gun In

Once you master this angle technique, you’ll have no trouble shooting nails exactly where you want them. Start by positioning the center of the nail gun tip exactly where you want the nail to enter the wood. Then carefully align the nail gun with the path you want the nail to take, just like when you line up a pool cue before striking the ball. Photo 1 shows what can happen if you get careless and angle the gun wrong. When you’re nailing into door jambs or other areas where only one side shows, point the nail gun slightly to the hidden side where it won’t show if the nail pops through.

Occasionally nails hit a knot or follow the grain—and pop out despite your best effort. If this happens, break or cut off the protruding nail with a nipper and use your nail set to recess the remainder.