My present layout is 36 to 48 inches high ( chair height) because of my
failing knees, standing a long time on concrete floors and mats doesnt help
the old body. My previous layout was 56 ½ inches high ( a number I worked
with for a long time on the RR) and sat on top of 4 drawer filing cabinets
in a small basement. Looking from a chair is eye level and standing you can
reach a lot of layout.
As for weather problems of expansion and contraction, inspect before running
just like the prototype does with extreme changes. Be proactive in all
phases of the hobby.
Pete Silcox