Modular bench system with metal side frames in the shape of an H and joining beams. All metal elements are coated with epoxy powder. This construction system has a load capacity of up to 175 Kg per linear meter. Several storage cabinets with doors and drawers, mobile or fixed, with rigid grip on the metal frame of the table can be placed under the countertop. Assembled and coupled with other furniture such as service panels, cabinets or sinks, these modular systems can elaborate complex compositions of benches with linear or central arrangement, equipped with all the utilities and accessories necessary to correctly perform laboratory work. Countertop of various materials for use in the laboratory.