Abstract: An improved crash-lock carton forming apparatus having three carton forming stations (44, 60 and 80). The first station (44) has engagement means comprising a pair of transversely spaced lifting arms (45, 45a) for lifting two flaps (20, 21) of the carton (12) and folding the flaps against side panels (14, 15) of the carton (12) and ploughs (49, 49a) for folding connector tabs (24, 25) in the reverse direction to that of the panels (14, 15). Second station (60) downstream of the first includes engagement means comprising lifting arms (61, 61a) for lifting and folding flaps (19, 22) in the same direction as the first two flaps (20, 21). A bonding station is adjacent the second station (60) for applying bonding agent to the tabs (24, 25). The third station (80) lifts and folds the remaining two flaps (19, 22) against associated ones of the side panels (13, 16). First and second holding and conveying means (51, 52 and 70, 71) for conveying the blank (12) through the apparatus.