Hi, I'm whipping together a temporary display layout (just an oval,
2x3, n-scale). I plan to use styrofoam (pink or blue) as the base and for rough contours. Do I need to glue some 1/4" ply on the bottom for strength or to prevent crumbling or help it survive the trip from my shop to display area?The display will rest completely on a flat surface, so the foam is only bearing the weight of the layout itself.
Thanks, Chris