Open the door to its widest position so that it will not be in the way of the instant screen door’s tension rod.
Unscrew the tension rod by twisting it counter clockwise so that the rod extends 2 inches wider than the door frame.
Position one end of the rod in a corner of the doorjamb and slip the other end into the opposite upper corner. You may have to push on the tension rod so it fits securely into the top of the door frame.
Stick the included adhesive strips to the frame of your door along the screen to seal off the instant screen door from the outside. Connect the simple hook and loop fasteners along the mesh screen’s sides to close off the sides.
Pull the mesh along the tension rod so that the opening is aligned with the center of the doorway.