Tekla Structures is a visual 3D modelling package that provides the most accurate and integrated way to manage detailing of all the steel structures we design and erect. Essentially, we create a detailed 3D structure of your steel structure whether it is a shed or a stadium. (Our erection drawings portray detailed dimensioned plans and specify the location of each steel component within your overall structure, the requirements for installing them and all the associated field work such as installing bolts, wedge anchors and welding spots.)