Our UnitPak® Storage Sustem boxes are all 11-1/4 inches square and 1-1/2 inch deep. We use high-grade electronics foam that is specially selected for longevity and is gentle on your trains. It will not interact with apint or printing either. Our Twin Tub coal gondolas and RoadRailer trailers come in 10-packs which use the UnitPak® box

FreightPak® Freight Car Storage Box #990700

The FreightPak® foam lined box is specially designed to hold N scale cars up to 60' long. Just tear out the perforated sections of foam to the length you need. There is even a removable strip across the top of each slot for taller cars. The two bottom slots are perforated all the way across so items up to 135' long will fit. Has 14 nests for freight cars.

We use high quality electronics grade, non-degradable foam in our storage boxes. The inside is about 11 inches square. The DeLuxe UnitPak® boxes fit in standard office file boxes or milk crates for easy toting or storage. They even have spaces on the outside to list their contents.