Any recommendations on free CAD software?

[Robert House]

I am working on a project and need to create several technical drawings of buildings and structures.
The technical drawings will consist primarily of floorplans, schematics, and 3D models.

Recommendations?

 

[PhanthomJay]

https://www.thoughtco.com/top-free-cad-packages-485330

I recommend AutoCAD, it is widely used in Engineering. Hopefully you have had some autocad experience, or else it's a big learning curve (at least to me) to become efficient at it.