Maybe I am late to the game (there have probably been many posts here about it, and I have seen others here mention its use), but Sketchup is quite nice and very easy to use. And more important, it is free. I did the attached in about an hour, including learning the tools. It is just a bathroom makeup area for my parents. I didn't put any material on it (you can make it look "wood") or get too crazy with the details, but it is really nice to be able to set up a quick pattern with measurements and a 360 degree view. I love cool tools.