Rigid pack for rod-shaped articles includes; a parallelepiped-shaped container, which houses the group of articles and has at least a lower wall, a front wall, a rear wall and two side walls; and a support system arranged in the container and has at least a first containing wall, which is parallel to the lower wall and is provided with a plurality of through holes, each engaged by a corresponding smoking article. The support system consists of a first articulated parallelogram having a frame glued to the rear wall of the container, two cranks and a connecting rod, which only rests against the front wall of the container, so that, while the rigid pack is being manufactured, the support system can be formed with the first articulated parallelogram in a flat condition and can subsequently be expanded by opening the first articulated parallelogram by rotation of both cranks.