I think Obnoxious is wrong! here's the reasons. when I built my daughters layout yes 4x8 2 simple ovals no switches 4 bridges and a tunnel/mountain at one end. I then was able to place structures as I ordered them placed them in the layout plan. once that was done I started building to the plan. start to finish 3 weeks for her xmas gift. I had no room for error I had to make sure it all fit and where the wiring was clearance for her train and the second train that wasn't bought yet. it gave me a picture of the layout before it was built to work towards. track software for any layout I think should be used unless you can do it old school with templates and have a lot more time on your hands.
