A few years ago I was facing the possibility of a change of homes so I tore down my old S-scale layout and designed one to be easy to relocate. It was a switching layout based on a 7X2 feet platform.
I have now made the next step and decided that S-scale is too large for what I expect to have available to me in the future. So I have designed a layout in N scale for the same platform expanded slightly to 93X36 inches.
We start with the layout drawing.
This represents what is actually built. Most of the track is installed and the bottom level is wired and tested. You can see by the dates that it has taken 10 months to get this far, starting with a drawing which had to be revised several times.