One of the least expensive storage boxes around. Perfect for files excellent for office supplies good for books. Quick to assemble but not quite as sturdy as more expensive boxes.
As I mentioned above the boxes are not as sturdy as the ones with double side walls but those cost more. An easy upgrade to this box would be to simply increase the lid overlap by about 50%. Besides the set up cost the extra corrugated material needed would be minimal yet the boxes when stacked and filled would hold together much better.
Getting ready to move and packing everything from books to china. I think keeping the boxes the same size and with covers for easy access is a plus when it comes time to stack them inside a truck etc. Great boxes!!!