N Scale SLSF Depot
This is a model of a SLSF (Frisco) small depot that was common along the main line through southeast and south-central Kansas. It has a roughly 16’ by 32’ footprint. If you wish to add roof overhangs you can put paper or thin card on the roof.
I print my models on a filament (FDM) printer. That's what they're designed to be printed on. I printed this structure at 30% infill. Print the structure floor-side down and no supports will be needed.