Step 6: Hold the carpet in place and use the staple gun to secure the carpet. Staple every 2 to 3 inches starting at one edge and working to the other. Only staple the bottom and sides of the bunk. You don’t want to scratch the finish on your boat from a staple that might sit a little too high. Fold over the edges of the carpet before stapling them and cut away the excess carpet with the utility knife. This will keep the new carpet from catching or tearing.