Thanks Petey I have an area in my shop that I am going to dedicate to our layout that will be 20' X 10'. One side of the 20' length will be against a wall, with the other 3 sides having access from both sides. I don,t know much about designing a layout but I spend a lot of time reading posts on The Guage and have learned a lot. I figured the 20' stretch down the wall would be 2' wide and the other and the other 3 sides could be 4' since I have access from both sides. I know I will have to operate from the middle but thought I might could build a bridge that would raise for access rather than a duck under. Will this area accomadate O scale or would HO be a better choice. I've never heard HO sound but have read a lot about it that seemed pretty good. Any input would be greatly appreciated!