For serious document storage, look no further than the Stackable Steel Roll File. This sturdy document box will be with you for years of organizing to come.The Stackable Steel Roll File is the sturdiest choice for storage of sensitive documents with its heavy duty steel construction. Blueprint storage is a cinch with this handy file cabinet, simply open the door and slide in your most important documents at work or at home. The door on this large document storage box is rust-resistant, features a label grid and can open to the right or left to suit your needs. The interior compartments are made of fiberboard with aluminum molding for maximum support.