A sleeve-type beverage can carrier having end dust flaps which mechanically interlock by means of locking tabs and cutouts. The flap containing the cutouts overlaps the flap containing the locking tabs so that the cutouts and tabs are aligned. The locking tab is folded back to allow the flap with the cutouts to be moved into place, then is inserted through the cutout and also through the portion of the bottom flap from which the locking tab was struck. This provides a secure mechanical lock. In addition, the blank from which the carrier is formed is designed so that the space between dust flaps is identical in shape to that of the dust flaps. This allows multiple widths of blanks to be cut from the sheet stock without scrap loss.