Cam
40" wide overall reaching from 3/4" facia board to velcroed wall panel. Although I have shrunk considerably at 87 years it is (well was!) not a problem for me to reach equipment on the outer track. But I usually stood on a small 10 " high toolbox to reach the wall. Outer mainline track is 6" from center rail to the wall. The two mainlines are 5" apart center rail to center rail. The end curves at the drop bridge entrance (behind the camera} are 072/084 and the other end of the mainline ovals curves are 084/096. It was intended to represent a Service Yard only and is entered/exited via curved track switches on the inner main with crossover capacity between the mains.
Attic room 9x19, layout 9x16.