Abstract: A bed liner system for use in a bed floor of a material hauling machine includes a lower panel that is attachable to the bed floor. The lower panel includes a first plate having a first flange, a first central opening and two first central slots disposed, one each, on either side of the first central opening. The bed liner system further includes an upper panel that is attachable to the lower panel. The upper panel includes a top plate having a second flange having a second central opening and two second central slots disposed that are aligned with corresponding features of the first flange such that a block having a top flange and a bottom flange connected by a web is insertable through the first and second central openings and slidable through one each of the two first and second central slots.