How to Measure a Box

Top Opening

 

Top Opening Style

Box dimensions are always inside dimensions and must be stated in the sequence of length, width, and depth. The length is the larger of the two dimensions of the open face (flap opening); the width is the smaller. the depth is always the distance measured perpendicular to the length and width between the innermost surfaces of the box.

End Loading

 

End Loading Style

End-loading (end-opening) boxes follow the same principles as the top opening style principles. Thus, the depth is still the dimensions between the innermost surfaces of the box measured perpendicular to the length and width.

Five Panel Folder

 

Five Panel Folder (Wrap-Around)

Tubes and folders follow the same sequence used for boxes in determining dimensions. length, width, depth are listed, in that order, with length being the larger of the two dimensions of the open face, and width the smaller.

Pad

 

Pad

Pads, liners, partition pieces, die-cut pads, scored blanks and sheets of corrugated or solid fibreboard, with only two dimensions have their size specified with the first dimension parallel to the corrugation, or perpendicular to the grain of solid fibreboard.