Foldable parallelepiped box (100; 300) comprising a punched piece comprising: - a central portion suitable for acting as bottom wall for the box; - a front portion and a back portion connected to the central portion by means of a first and a second longitudinal folding line (L1, L2); said front and back portions (P2, P3) being erected with respect to the central portion and suitable for acting as front wall and back wall for the box when the box is developed; said box comprising: - two rectangular lateral portions (42, 43) that project outwards with respect to transverse sides of the central portion of the punched piece when the box (100; 300) is extended; said lateral portions (42, 43) being suitable for being disposed in erected position with respect to the central portion of the punched piece, in such a way as to act as lateral walls for the box (100; 300) when the box (100; 300) is developed; - two ending lateral portions (44, 45) with rectangular shape connected to the lateral portions (42, 43) and suitable for being folded by 90° towards the interior of the box with respect to the lateral portions (42, 43) in such a way as to be overlapped to the lateral portions (42, 43); - two front lateral tabs (53, 54; 353, 354) that project outwards with respect to the front portion of the punched piece when the box is extended; - two back lateral tabs (63, 64; 363, 364) that project outwards with respect to the back portion of the punched piece when the box (100; 300) is extended; wherein said front and back lateral tabs (53, 54, 63, 64; 353, 354, 363, 364) are suitable for being disposed in erected position with respect to the central portion of the punched piece in such a way as to be disposed between the lateral portions (42, 43) and the ending lateral portions (44, 45) when the box (100; 300) is developed; wherein it comprises: - a central sheet disposed on the central portion of the punched piece; said central sheet comprising the lateral portions (42, 43) and the ending lateral portions (44, 45); and characterised in that it further comprises - a front sheet disposed on the front portion of the punched piece, and comprising the front lateral tabs (53, 54; 353, 354); and - a back sheet disposed on the back portion of the punched piece, and comprising the back lateral tabs (63, 64; 363, 364). - a central portion suitable for acting as bottom wall for the box; - a front portion and a back portion connected to the central portion by means of a first and a second longitudinal folding line (L1, L2); said front and back portions (P2, P3) being erected with respect to the central portion and suitable for acting as front wall and back wall for the box when the box is developed; - two rectangular lateral portions (42, 43) that project outwards with respect to transverse sides of the central portion of the punched piece when the box (100; 300) is extended; said lateral portions (42, 43) being suitable for being disposed in erected position with respect to the central portion of the punched piece, in such a way as to act as lateral walls for the box (100; 300) when the box (100; 300) is developed; - two ending lateral portions (44, 45) with rectangular shape connected to the lateral portions (42, 43) and suitable for being folded by 90° towards the interior of the box with respect to the lateral portions (42, 43) in such a way as to be overlapped to the lateral portions (42, 43); - two front lateral tabs (53, 54; 353, 354) that project outwards with respect to the front portion of the punched piece when the box is extended; - two back lateral tabs (63, 64; 363, 364) that project outwards with respect to the back portion of the punched piece when the box (100; 300) is extended; - a central sheet disposed on the central portion of the punched piece; said central sheet comprising the lateral portions (42, 43) and the ending lateral portions (44, 45); and characterised in that it further comprises - a front sheet disposed on the front portion of the punched piece, and comprising the front lateral tabs (53, 54; 353, 354); and - a back sheet disposed on the back portion of the punched piece, and comprising the back lateral tabs (63, 64; 363, 364).