A carton is formed from a blank having a longitudinal length and a transverse width. The blank has a front panel with a display window, a first side panel, a back panel, a second side panel, and a display panel. The display panel has a central portion and a marginal portion that circumscribes the central portion. The marginal portion is at least partially defined by at least two spaced-apart transverse fold lines and at least two longitudinal edges extending between the fold lines. At least a portion of the display panel is positionable to face the display window in the carton formed from the blank. At least one strut is cut from the central portion of the display panel. Each strut comprises a base panel foldably connected to the display panel and an adhesive flap foldably connected to the base panel.