When working with complex metal structures, understanding the construction can be difficult for welders who mainly work with traditional products. In order to facilitate the reading of construction drawings, it can help to represent the structure as if it were dismantled into several portions. Each face of the structure can be displayed separately using a 2D view and can be prepared off-site by the welder. Rather than adding written notes to the different types of metal profiles, they can be distinguished by using colours to simplify and speed up the assembly process. Once all the portions are completed, a 3D view of the whole structure helps to show how to connect the different pieces.