The present invention concerns a tray (1) made from cardboard sheet material comprising a rectangular bottom (3) and a ring (4) of side walls, i.e. two first opposing side walls (5, 6), referred to as first walls, at least one of the first walls (5) being connected on either side by first fold lines (9) to end flaps (10, 11) referred to as first flaps, which may or may not themselves be connected respectively at the top part of same to a second flap (14) by a second fold line (15), and two second opposing side walls (7, 8), referred to as second walls. The second walls (7, 8) each comprise a rectangular central panel (20) of which the length
l1 is less than the length
l2 of the bottom, the panel (20) being connected, at each of the lateral ends of same, by a third fold line (21) to a reinforcing member forming a pillar (22) folded and glued to the central panel (20), and/or to the first flap of the adjacent first wall, i.e. a first reinforcing element located entirely separated from the adjacent first wall, and a second reinforcing element.