WHAT IS SKETCHUP?
Sketchup is a free 3D Modeling program (with a paid pro version available). Intuitive to use, with a 3D warehouse full of available models to work with, it's a goto 3D modeling program for architects & carpenters alike. Below is a video from This is Carpentry summarizing some key features of Sketchup. (Check out more Sketchup resources from THISisCarpentry here.)