Shown above is the 1-1/8" Pro Type weatherstrip. To install, position far enough away from the door stop so the weatherstrip can fold flat against the jamb without hitting the door stop. Nails must be placed 1-1/2" apart or closer. make sure to nail as close to the edge of the weatherstrip as possible, so long as the head of the nail is entirely on the weatherstrip. Do not nail too close to the crease.