Trainman2001 posted:Inter-floor depth is at least 10" (with 1 X 8 floor joists and 1" subfloor, ceiling and flooring), and can be much more depending on the joist depth. I would stick with a scale foot like Al says. My scratch-built structures are all 1/4" = 1'. Traditional Lionel was sort of blend of S and O gauges, and then there was their crossing guard houses which were more like G gauge. Little kids didn't care so much.
When I'm building stick by stick, I'm generally using 2x12's for joists or something very close.
