for packaging condensing units for a central air conditioner such units may have one or more rounded corners in order to provide a good fit between the carton and the condenser unit corner panels 22 and 24 are provided which thereby eliminate the need for corner fillers such as traditionally have been used in packaging irregularly shaped items in rectangular cartons preferably corner panels 22 and 24 are provided at diagonally opposite corners of the carton although it is contemplated that carton 10 could be provided with corner panels 22 and 24 in adjoining corners furthermore by the provision of the corner panels 22 and 24 minor flaps 38 and 40 are provided for cooperating with minor panels 34 and 36 for providing a rigid carton top as set forth hereinabove it should be noted that more or fewer corner panels 22 and 24 may be provided in order to accommodate the shape of the item to be contained in the carton and furthermore in order to provide even greater rigidity for the carton cover referring further to fig1 it can be seen that major flaps 30 and 32 are provided to cover minor flaps 34 36 38 and 40 in the assembled position of carton 10 flaps 60 and 62 are integrally formed with flaps 30 and 32 in the illustrated embodiment of fig1 flap 30 is shown in the open position but in the fully assembled position flap 30 would be folded over onto minor flaps 34 36 and 38 it should be noted from fig1 and 2 that no bottom panel is provided for the carton thus the carton disclosed is a half slotted carton wherein edge 48 is the lower edge of.