Abstract: A folding machine for folding the front and rear panels of a box blank prior to folding the lateral panels thereof including a pair of pull rolls for advancing successive ones of such blanks, pivotable rising fingers just beyond the pull rolls for initiating upward folding of the front panel along a transverse score line in the blank, a folding beam for intercepting the partially folded front panel of the blank and bending it backward against the body portion of the blank as it continues to advance, a second pair of pull rolls downstream from the folding beam for advancing the partially folded blank and pressing the front panel against the body of the blank, a pivotable stop downstream from the second pair of pull rolls for momentarily stopping advancement of the blank, a second folding beam just downstream from the second pair of pull rolls for supporting the rear panel of the blank to be folded, and a rotatable roller lever adjacent the second folding beam for pushing the body of the blank downwardly agains