Metal Edged Boxes
Conservation By Design are able to offer ‘Metal Edge’ Boxes.
This range of boxes are assembled using a right angle Metal Edge ‘stay’ to re-enforce the corners, The two edges of the boxboard are securely fastened together with the metal stay, as are any joints of the box and lid.
The metal stay is made from steel which is epoxy coated.
Metal Edge corner stays have to be fitted at the factory with a special machine which forces the metal teeth on the inside of the stay through the boxboard from the outside wall without puncturing the inside wall of the box.
The Metal Edge method of constructing a box uses less boxboard than conventional CXD flat packed boxes because it does not require double walls.
This is not the strongest method of constructing a box, but it is ideal for some box designs. A variety of materials can be used including solid boxboard in various thicknesses and thick polyester to make transparent specimen box lids.
If used for storing textiles care should be taken as the Metal Edge could snag on delicate fabrics.
Metal Edge boxes originated in the United States where they are popular because there is a tradition of using high density archival boxboard which is harder to fold and therefore less suitable for shipping flat for self assembly.
Due to the manufacturing technique all metal edge boxes are supplied ready constructed.