We use these boxes for organizing journals and they have been great to hold up and we are able to stack on top of each other as well which is a big plus.
I stored a lot of stuff in these boxes...from files to books to CDs/DVDs. They are very easy to put together and durable. Handled more weight than I thought they could. Only small problem is that the pre-perforation of the flaps isn't perfect so just be careful as you separate them to assemple the boxes.