The industrial mezzanines are structures made with beams and available in different heights and thicknesses to cover the different flow requirements. The covering of the walking surface can be realized with corrugated sheet or with insulated panels. Thanks to its bolted structure it does not require the help of special means to be mounted. The wide range of sections available, both for the beams and for the columns, allows multi-level mezzanines and structures with greater heights to be created in complete safety, with greater capacity and greater free-light performance, with consequent great advantages of specificity of use.