SketchUp Make - SketchUp Make is a best in the class CAD software capable of performing 2D and 3D rendering and designing, however, best for the 2D projects.
CYPECAD - Reliable structures, very precise drawings
FreeCAD - An open-source parametric 3D modeler
Robot Structural Analysis Professional - Structural Analysis and Design
Solid Edge - Solid Edge is an industry-leading mechanical design system with exceptional tools for creating and...
STAAD.Pro - Structural Analysis and Design.