Abstract: The invention relates to a support module for production components and/or assembly components (50) of a processing unit, characterized in that it is formed at least approximately in a prismatic, preferably cuboidal manner and, on at least one side face (3, 5, 7) of the prism, has a predetermined fastening grid of prepared fastening points (31), more particularly fastening holes and/or fastening pins and/or fastening hooks, for attaching the components (50, 52, 54, 56, 62, 66, 68), and in that it also has means for fixing it to a base frame (37) or the like of the processing unit, wherein the support module (1) is configured such that it can be joined together with at least one identical support module (1) to form a modular support system. The invention also relates to a processing unit having a support module.