6. Turn the rail over and at the corner pockets fold the cloth over the mitered edge as shown in the figure to the right. Stretch the cloth tightly, work out any wrinkles as you staple three places in the area shown in this figure.7. Staple three places along the rear edge of the pocket facing (marked with an "X" in the figure to the left), then trim off the superfluous cloth at the pocket area.
8. If the rail is an end rail repeat Step 7 at the other corner pocket then, starting at the center of the rail, stretch the cloth tightly over the cushion and staple at the bottom of the rail working toward each end.
9. Trim the excess cloth from the bottom of the rail so that it is flush with the edge of the cloth relief groove.