New Display Cabinets

One suggestion I would make is to have an option to make them deeper and layered. You can fiddle with the dimensions, but I use inexpensive 2x4s on 10" or 12" shelves. Here is what the cross section would look like:

This lets you fit more rolling stock in a set amount of wall space. Yes, portions of the back rows are partially obfuscated, but I find I need the space more than 1000% visibility...

I built wall shelving units of 1 x 4 " X 7 or 8 foot sections and used 1 x 3 " behind those vertically attached by screws. Stained them and put about 10 shelves together in 1 unit and put another 9 shelf unit above that one and attached them to the studs. Have 9 foot ceilings in my house. Have 19 shelves which are spaced 5 1/2" apart and 7 feet in length in a room in the house and the entire rear wall in the garage to house my trains.

And still not enough shelving to properly display the trains. And you wonder why some of us are very, very selective these days in purchasing.

Looks Great! Nice work!