I prefer to use CAD - I have used AutoCAD, Solidedge, Sketchup, and DesignCAD. Currently use DesignCAD and Sketchup in my job, so that is what I use at home. Sketchup is pretty simple for 3d, but has limitations - partially my own, since I'm still learning it. DesgnCAD 3D Max is a cheap cad program that will do 2d and 3d and sells for anywhere from $39 up. If you have used AutoCAD before, DesignCAD will drive you nuts until you learn it. I have not messed with the 3d portion, just the 2d. If you have never used CAD and want to give something a try, it may do the job for you. I find keeping track of files easier than keeping track of paper drawings. I'm 58 years old, just for information.