Collapsible crate comprising: - a bottom wall comprising an upper side and a lower side; - a longitudinal axis (Y-Y) and a transverse axis (X-X); said transverse axis (X-X) being perpendicular to said longitudinal axis (Y-Y); - a pair of collapsible longitudinal sides (11, 12) and a pair of collapsible transverse sides (13, 14); each pair of collapsible sides (11, 12; 13, 14) comprising two opposite collapsible sides; each collapsible side (11, 12, 13, 14) comprising a border hinged to said bottom wall and a free border (11c, 12c, 13c, 14c); each collapsible side (11, 12, 13, 14) being configured in such a way to be in an operating position, wherein said collapsible side (11, 12, 13, 14) is perpendicular to said bottom wall, and in an idle position, wherein said collapsible side (11,12, 13, 14) is parallel to said bottom wall; each collapsible side (11,12, 13, 14) comprising a first side that faces said bottom wall when said collapsible side (11, 12, 13, 14) is in idle position, and a second side (41, 42, 43, 44) that faces the opposite direction relative to said first side (11a, 12a, 13a, 14a); female centering means and male centering means; said female centering means being obtained on the second side (41, 42, 43, 44) of the collapsible sides (11, 12; 13, 14) of a pair of collapsible sides (11, 12; 13, 14); said male centering means (3a, 3b, 3c, 3d) being disposed on said lower side of the bottom wall; wherein said female centering means are configured in such a way that a male centering means (3a, 3b, 3c, 3d) of an upper crate can be inserted in a female centering means of a lower identical collapsible crate with the collapsible sides in said idle position when the upper crate is rotated by 90° with respect to the lower crate; characterized in that said female centering means disposed on said at least one pair of sides (11, 12, 13, 14) comprise three "U"-shaped housings (2a, 2b, 2c), of which two lateral housings (2a, 2b) and one central housing; each housing of said three housings (2a, 2b, 2c) comprising two parallel sections (22, 23, 24, 25) and one transverse section (21, 26). - a bottom wall comprising an upper side and a lower side; - a longitudinal axis (Y-Y) and a transverse axis (X-X); said transverse axis (X-X) being perpendicular to said longitudinal axis (Y-Y); - a pair of collapsible longitudinal sides (11, 12) and a pair of collapsible transverse sides (13, 14); each pair of collapsible sides (11, 12; 13, 14) comprising two opposite collapsible sides; each collapsible side (11, 12, 13, 14) comprising a border hinged to said bottom wall and a free border (11c, 12c, 13c, 14c); each collapsible side (11, 12, 13, 14) being configured in such a way to be in an operating position, wherein said collapsible side (11, 12, 13, 14) is perpendicular to said bottom wall, and in an idle position, wherein said collapsible side (11,12, 13, 14) is parallel to said bottom wall; each collapsible side (11,12, 13, 14) comprising a first side that faces said bottom wall when said collapsible side (11, 12, 13, 14) is in idle position, and a second side (41, 42, 43, 44) that faces the opposite direction relative to said first side (11a, 12a, 13a, 14a);