Q: Do magnet screen doors work? A: Yes, magnet screen doors work by automatically opening and closing behind you using powerful magnets to keep bugs out while allowing fresh air in. Q: Does magnetic screen door go on inside or outside? The magnetic screen door can be installed on either the inside or outside of the doorway. Q: How do you install magnetic screen doors? Installing the Wiz-Screen is easy and requires no tools or special equipment. It comes with 12 pins for wooden door installation and Velcro for metal or plastic frames. Q: Can you use a magnetic screen door on a sliding glass door? Yes, the Wiz-Screen can be used on sliding glass doors, providing a convenient hands-free solution for entry and exit.