A method for the construction of an industrial plant , in particular a petroleum refinery, by means of scaffolding units , each of which will be assembled from individual scaffolding components, comprising the following steps: Providing a 3D construction plan in which building structures of the industrial plant are recorded; Drawing of scaffolding units to be used for the construction of the industrial plant in the 3D construction plan of the industrial plant , characterized in that the 3D construction plan is modified with respect to at least one of the building structures for use of a predetermined scaffolding unit with respect to said at least one of the building structures of the industrial plant to allow for use of a scaffolding unit of a simpler construction as would be necessary otherwise, wherein the predetermined scaffolding unit has a fixed height, width or length and is integrated and drawn in the construction plan and is used for construction during the actual construction of the industrial plant , wherein the 3D construction plan is modified with respect to a spatial arrangement, size and/or construction of said at least one of the building structures , wherein with regard to the spatial arrangement of said at least one of the building structures , said at least one of the building structures is moved laterally when compared to its original location as depicted in the construction plan and / or a level adjustment of said at least one of the building structures is done, and / or a spatial orientation of said at least one of the building structures with regard to other building structures is modified to thereby accommodate the predetermined scaffolding unit in the construction plan and on the construction site during the construction work; Building of the industrial plant according to the modified construction plan and by use of the scaffolding units drawn in the 3D construction plan . Providing a 3D construction plan in which building structures of the industrial plant are recorded; Drawing of scaffolding units to be used for the construction of the industrial plant in the 3D construction plan of the industrial plant , characterized in that the 3D construction plan is modified with respect to at least one of the building structures for use of a predetermined scaffolding unit with respect to said at least one of the building structures of the industrial plant to allow for use of a scaffolding unit of a simpler construction as would be necessary otherwise, wherein the predetermined scaffolding unit has a fixed height, width or length and is integrated and drawn in the construction plan and is used for construction during the actual construction of the industrial plant , wherein the 3D construction plan is modified with respect to a spatial arrangement, size and/or construction of said at least one of the building structures , wherein with regard to the spatial arrangement of said at least one of the building structures , said at least one of the building structures is moved laterally when compared to its original location as depicted in the construction plan and / or a level adjustment of said at least one of the building structures is done, and / or a spatial orientation of said at least one of the building structures with regard to other building structures is modified to thereby accommodate the predetermined scaffolding unit in the construction plan and on the construction site during the construction work; Building of the industrial plant according to the modified construction plan and by use of the scaffolding units drawn in the 3D construction plan . <EOS>