Abstract: A storage container blank for articulation into a wedding gown box container for the long term storage of gowns in a manner which prevents the entry of dust and other contaminants into the container, thus preserving the gown. A series of operably joined panels form a lower storage container cavity and an additional series of integrated operably joined panels form an upper storage container cover capable of telescopically covering the cavity upon articulation. The lower storage container cavity includes integrated contaminant barrier elements to preclude the entry of dust and other contaminants therewithin. In one embodiment an inspection insert panel is preliminarily placed over the gown within the lower storage container cavity before positioning of the upper storage container cover portion over the lower storage container cavity to enclose same.