Lots of professional architects and interior designers use SketchUp. One of SketchUp’s advantages is the library of pre-built components available for standard

Lots of professional architects and interior designers use SketchUp. One of SketchUp’s advantages is the library of pre-built components available for standard doors, windows, etc. Instead of designing everything from scratch, you can search for a “French door” and then place it where you want it. That way you’re choosing from standards compliant elements so when the builder goes to Home Depot to purchase a window it will be available in the desired size. FreeCAD is great (I’ve used it a lot) and people should definitely continue to invest in making it better. It’s great for 3D printing. Plus, it’s fully scriptable in Python so cool automation or parameterization things are possible.