A system for creating custom-sized cardboard blanks for folding packagings comprises a first and at least a second supply for fanfold cardboard, a control unit (e.g., microprocessor) that calculates, based on order information regarding the desired minimum dimensions of a current packaging, under predefined optimization criteria a first blank layout for folding the packaging, said blank layout comprising a leading edge and an ending edge and transverse and longitudinal crease lines dividing the blank having a desired length and width into panels, defines, based on predefined criteria, areas around the transverse crease lines and the leading and ending edges, in which no transverse folds from fanfolding the cardboard should be present, sensors communicatively coupled with said control unit that sense information indicative of a presence of transverse folds in cardboard, a cutter to cut-off the piece of cardboard from the first or the second web and form the desired blank.