An adjustable display tray includes a bottom wall, opposite side walls, a front wall and a back wall foldably joined to one another to form an open-top adjustable interior space for containing articles. The adjustable interior space includes a central section formed by two parallel spaced apart fold lines on the bottom wall and respective central portions of the front wall and back wall. Respective first and second reducible and expandable sections foldably extend from the respective two parallel spaced apart fold lines. Each of the respective first and second reducible and expandable sections include a respective tray front hinge and a respective back swing flap which are formed on the respective front and the back walls to permit the respective first and second reducible and expandable sections to be configured to reduce or expand the interior space of the adjustable display tray.