A door locking system includes a first locking assembly and a second locking assembly. The first and second locking assemblies each have a locking actuator mounted on a door and a catch plate mounted on a door frame. Each of the locking actuators includes a lever and a locking plate, such that, in response to rotating the lever from an open position to a close position, the locking plate rotates from an unlocked position to a locked position, respectively, in which the locking plate is inserted into a groove of the corresponding catch plate when the locking plate is in its locked position.