Abstract: An improved shipping carton is provided that is formed from a unitary blank comprising a sheet of material such as corrugated paperboard, and which includes an internal strut column/support member that acts as a divider and a support structure. The shipping carton formed from the unitary blank is suitable for packaging articles of irregular shape, such as a partially assembled bicycle.

Abstract: A unitary corrugated board insert for a bicycle shipping container. The insert is fashioned from a generally unitary blank of corrugated paperboard, with panels of the insert defined by vertically extending score or fold lines. One of the panels is provided on one of its surfaces with an adhesive. The insert is formed by folding the several panels about the fold lines so as to yield an insert in the general form of two vertically running channels or enclosures for parts which must be added by the consumer to complete the assembly of the bicycle. These two channels are joined by folding the blank and attaching its free left and right ends to that panel which has been provided with adhesive. The two channels store some of the components of the bicycle which must be added by the consumer to complete bicycle assembly.