I have used these boxes once before but one size up.There is a little work to do when you put the box together but the instruction is on the box. I have to pack 150 to 200 work books and now that I’m in my fifty’s the smaller size works better. I like and need the handles on the sides to make it easier to pick up the boxes. If the boxes was bigger I would put more books in and would not be able to lift them. This is the basic and not the heavy duty but i find it still holds up great. I have had some boxes of books packed for years and still hold. The out side of the box on both sides has a great space for labeling space but I use peal and stick so I can change the contents.
I have been getting these for years! I can easily handle then with built in handles ! From storing files to pictures all kinds of things. Very easy to stack and label. very easy to assemble! I use them for transporting in the car from hot food in pots to party favors what ever! they are so versatile!