A corrugated box is used to rehouse documents or books for additional support and protection. This differs from a phase box, not only in materials used but in design. While a phase box provides support for standing materials, corrugated boxes are meant to lie flat.
This particular box was constructed for a scrapbook of sorts. The object was a series of newspaper and magazine articles, glued to thin board and bound together with a metal ring.
I used a Syracuse University manual to construct the box.
This is an image of the end result, open, with the object.