Rigid box for smoking articles having a parallelepiped shape and provided with: a first panel which defines a top wall; a second panel which is folded 90° with respect to the first panel and defines a first lateral wall; a third panel which is folded 90° with respect to the second panel and defines a bottom wall; a fourth panel which is folded 90° with respect to the third panel and defines a second lateral wall opposite the first lateral wall; a fifth panel which is folded 90° with respect to the fourth panel and rests on an inner surface of the first panel; a sixth panel which is folded 90° with respect to the fifth panel and divides the inner volume of the rigid box; and a seventh panel which is folded 90° with respect to the sixth panel and rests on an inner surface of the third panel.