A door stop device is described, having a first magnet connected to a door and a second magnet connected to a floor. The first magnet can be mounted on a movable arm so as to allow the first magnet to move upwards and downwards. The arm can be bias in an upward position via a spring or a third magnet so as to be maintained in an upward position when the first and second magnets are not aligned, but moves downward when the first and second magnets are aligned.