I don’t have any way of posting pics on the forum. If anyone would like to send me their e-mail address in a PM I would be happy to send the picture that I have to them. Perhaps they could then post on the forum.
Each tray is built on a base that measures just under 11 X 17 inches. I would urge you to measure the box that you are going to use as I have seen different sizes of them. Mine all come from a single source so they are all the same.
Each side is 2 and 3/8 deep. This is deep enough for Vista Dome cars. I cut the sides to the full length of the tray and the ends to fit between them. I make the dividers between the cars a little shorter than the sides. There are two dividers that run the length of the box for the 50’ cars and 2 cars will fit in the length. I separate the cars with small blocks of foam that has a cutout for the couplers. I use small pieces of foam to fill the length so that the cars don’t rattle and move when being transported.
I have 2 old hardshell roadcases that used to house keyboards–namely Fender Rhodes electric pianos—anyway these cases were converted into my road cases/storage cases for all my N scale pieces—which I’m still collecting—all I done was collect all kinds of gray foam used to house computers and such and modified them together with some plastic separation pieces—so far this has worked quite well for me—
Grab as many of them as you can and stockpile them. I’ve found that things like this are available only sporadically. Besides, the empty boxes are usually headed for the dumpster anyway, so you’re recycling.
I make my own boxes with left over foam rubber from the carpet store. This is not the recycled rubber that you usually see under carpets, but a solid white to off white piece. I order empty boxes like you show from a box company for about $3.00 each and then I glue the foam rubber to the inside. One advantage of making my own is that I can arrange the interior of the boxes according to the length of the cars that I will be storing in that box.
One of the important details is to use a piece of plastic to wrap around each car so that details on the cars do not snag on the foam rubber. I get a plastic drop cloth from the paint store and cut it into squares that are the correct size for each car.
I use six boxes to take my equipment to our club’s modular setups.