I originally had five of the Uline totes in my pass thru. Positioned long side front to back. Sturdy, all the same height and you can stack other items on top. Still gave me room for my griddle and other items in front of them.
I have now moved two to my living area and they now are my computer table. Previous table is now in the bedroom. Now oriented the three remaining totes long end side to side in the pass thru. Now even more room in front of them for my camp chairs and other items that do not need to be in totes.
If I recall they come in different sizes and I ordered what would fit thru my door and give me most loading. I like them so well I bought three more for the truck after several months.
Not cheap but not a whole lot more expensive than what you buy at the big box stores.
Caution: Easy to put a lot of weight in them if your tongue weight is heavy already.