SketchUp (formerly Google Sketchup) is a 3D modeling computer program for a wide range of drawing applications such as architectural, interior design, civil and mechanical engineering, film, and video game design—and available in a freeware version, SketchUp Make, and a paid version with additional functionality, SketchUp Pro. SketchUp comes with a 3D Gallery that lets you search for models and share yours.
- you need to be really numb out of your mind to think SketchUp is an alternative, lets start with the fact that SketchUp cant even recognize any kind of vectors
- Sketchup is a 3D modelling package, not a CAD package.
- Sketchup doesn't seem to be able to open .dwg files