In this step, I had to figure out what could fit where. I had to measure the height and size of each room. In the end, I had to move a lot around for spacing issues and limit the size of certain facilities.
What should I upload in this Develop Solutions step?
Consider uploading images (JPG, GIF) of your rough digital model. It's ok if your model is still a work in progress. Show an axonometric or perspective view with people, which will help others understand the scale of your library.