A pallet-carrier box, adapted to be mounted on the chassis of a commercial vehicle, comprising: - a case, comprising a pair of upper and lower walls, lying on respective planes defined by a longitudinal direction (y) and a transverse direction (x) perpendicular to each other, said planes being mutually parallel and spaced along a vertical direction (z) perpendicular to the first two, said case further comprising a pair of side walls, lying on respective planes defined by the longitudinal (y) and vertical (z) directions, said planes being mutually parallel and spaced apart along the transverse direction (x), said upper, lower, and side walls (10a, 10b) defining a compartment suitable for accommodating at least one pallet; - a pair of guides, associated with respective side walls and extended along the longitudinal direction (y); - a pair of pins, slidable within the respective guides; - at least one lid, adapted to occlude an access section of the compartment along a plane defined by the transverse (x) and vertical (z) directions, said lid being hinged to the pins and being movable between a closed condition, in which the lid closes the access section to the compartment and the pins are located in the guides in a position proximal to said access section to the compartment, and an open condition, in which the lid is arranged parallel to a lower wall of the case and the pins are located in the guides in a distal position with respect to said access section of the compartment; and - a pair of primary actuators, each having a first end hinged to a respective side wall, and the opposite end hinged to a respective pin, said primary actuators being suitable to give a thrust to the respective pins towards the position proximal to the access section of the compartment when the lid is in the closed condition, and a thrust to the respective pins towards the position distal from the access section of the compartment when the lid is in the open condition. - a case, comprising a pair of upper and lower walls, lying on respective planes defined by a longitudinal direction (y) and a transverse direction (x) perpendicular to each other, said planes being mutually parallel and spaced along a vertical direction (z) perpendicular to the first two, said case further comprising a pair of side walls, lying on respective planes defined by the longitudinal (y) and vertical (z) directions, said planes being mutually parallel and spaced apart along the transverse direction (x), said upper, lower, and side walls (10a, 10b) defining a compartment suitable for accommodating at least one pallet; - a pair of guides, associated with respective side walls and extended along the longitudinal direction (y); - a pair of pins, slidable within the respective guides; - at least one lid, adapted to occlude an access section of the compartment along a plane defined by the transverse (x) and vertical (z) directions, said lid being hinged to the pins and being movable between a closed condition, in which the lid closes the access section to the compartment and the pins are located in the guides in a position proximal to said access section to the compartment, and an open condition, in which the lid is arranged parallel to a lower wall of the case and the pins are located in the guides in a distal position with respect to said access section of the compartment; and - a pair of primary actuators, each having a first end hinged to a respective side wall, and the opposite end hinged to a respective pin, said primary actuators being suitable to give a thrust to the respective pins towards the position proximal to the access section of the compartment when the lid is in the closed condition, and a thrust to the respective pins towards the position distal from the access section of the compartment when the lid is in the open condition.