SketchUp Make vs. SketchUp Pro
SketchUp Make is the free version of the program whereas SketchUp Pro must be purchased, but it contains more functionality than the free version. In particular, SketchUp Pro has advanced drawing features that aren’t necessarily relevant to CabWriter, but may be valuable to you for other drawing tasks. SketchUp Pro also comes bundled with a program called LayOut which is what allows you to produce professional shop drawings.
While CabWriter itself will work perfectly well with both SketchUp Make and SketchUp Pro, except for the shop drawing aspect, one thing to keep in mind is that if you are going to use Sketchup, and by extension CabWriter, in your business or any commercial enterprise, Trimble requires that you purchase a SketchUp Pro license and use that product for your drawings. Below are the relevant portions of the SketchUp license agreement:
2.2.1. SketchUp Make
SketchUp Make Software is licensed only for non-commercial use for your internal business purposes. Non-commercial use means that you may not sell, rent, lease or lend the output of the Software. Any other use requires the purchase of a SketchUp Pro license. For example, if you are a for-profit organization of any kind, or an employee of a for-profit organization using the Software in that capacity, you are engaged in commercial activity; therefore, in order to use the Software, you must purchase a SketchUp Pro license. Government agencies are considered to be commercial users and must purchase a SketchUp Pro license.
2.2.2. SketchUp Pro, SketchUp Viewer
SketchUp Pro and SketchUp Viewer Software may be used for commercial purposes in accordance with the terms of this Agreement.