Method of assembling a wardrobe box assembly

A wardrobe box assembly comprising:

• a wardrobe box comprising a sidewall enclosure comprising a plurality of side panels defining an interior cavity, a plurality of top panels connected to a top edge of the sidewall enclosure, the top edge of the sidewall enclosure being defined by a top edge of each side panel, a first box mounting slot, and a second box mounting slot;
• a hanger support member mounted on the wardrobe box and extending laterally across the interior cavity, the hanger support member defining a first hanger engagement slot engaging the first box mounting slot and a second hanger engagement slot engaging the second box mounting slot;
• and
• an attachment panel coupled to the wardrobe box, the hanger support member detachably connected to the attachment panel by a tear line in a pre-use configuration, the hanger support member configured to be torn away from the attachment panel at the tear line and mounted on the wardrobe box in a use configuration,
• wherein
• a first opposing pair of top panels of the plurality of top panels each define a closure slot that is opposite from a top edge of the corresponding top panel;
• the closure slots together define a closure opening in a closed configuration of the wardrobe box assembly;
• a second opposing pair of top panels of the plurality of top panels each comprise a closure tab that is opposite from a top edge of the corresponding top panel;
• and
• each of the closure tabs engage the closure opening in the closed configuration.