A display mounting system includes first and second base supports, a lateral support system, and display module hanger brackets. The lateral support system includes a first lateral support element and second lateral support element and is adapted to be placed in a display module receiving configuration in which the lateral support system is connected to the first and second base supports in a supporting configuration. Each display module hanger bracket has a respective hanger structure and a respective stabilizing structure. When one of the display module hanger brackets is placed in an installed position on the lateral support system, the hanger structure of that respective display module hanger bracket is supported along a height axis by the first lateral support element while the stabilizing structure of the display module hanger bracket cooperates with the second lateral support element to position the stabilizing structure relative to the second lateral support element.