flip-top box

n.A container that holds folders of documents vertically and that measures roughly 10 inches high, 12 or 15 inches wide, and 6 or 3 inches deep, and that usually has an integral top hinged at the upper back.

Notes

Document boxes are typically made from cardboard. They are often neutral gray and lined on the inside with white, acid-neutral paper. Boxes made from lignin-free cardboard are often tan and unlined. They may have a string, handle, or hole on one end to facilitate removal from a shelf.