Abstract: A divider structure for a shipping carton consists of first and second divider members, the patterns for which are preferably slotted and scored into a common blank so that the blank may be separated, along a scored part line, into two blanks, one for each of the two divider members. The two divider members are to be interlocked together for division of the carton into a plurality of compartments. Each divider member is preferably scored for folding and includes a central intermediate panel portion and a pair of outer wing panel portions on opposite sides. The wing panels are folded up toward each other to define a generally U-shaped channel member. One of the channel divider members is slotted laterally across the intermediate panel portion and into the wing panels, whereas the other channel divider member is slotted from the outer edges of the wing panels toward the intermediate panel portion.