Abstract: A device for justifying an end of a section released from a drop stacking machine. A capture member for engaging an end of the section is slidably mounted to a frame and is shiftable between an extended capture position wherein the capture member is position to engage the end of the section to be dropped from the stacking machine and a retracted position. An end stop having a justifying surface is mounted to the frame. An actuator connected to the capture member shifts the capture member between the extended capture position and the retracted position, and in the process brings the section end into contact with the justifying surface. A control system having a sensor is provided for detecting the presence of a section waiting to be dropped from the stacker and in response thereto activating the actuator. Accordingly, when a section is dropped from the stacking machine the section end is captured by the capture member.