Abstract: A door module (1) is adapted to be applied in a sealed manner to the periphery (2) of an inner opening (3) of a box structure (4) of a vehicle door (5) and can support devices such as a window raiser (6). The module (1) comprises a rigid peripheral part (14) composed of a first material having good mechanical properties shaped to be adaptable to the periphery (2) of the opening (3), and a plate (15) composed of a second material connected on its periphery in a sealed manner to the rigid peripheral part (14) and filling the area defined by the latter. The plate (15) may be composed of a cheap material, which reduces the cost of the module while maintaining its mechanical properties on the peripheral part thereof. The devices, in particular the window raiser, are fixed to the rigid peripheral part (14).