Box Dimensions

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. 

Other Dimensions

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

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

Unit Conversions

1/16 1/8 3/16 1/4 5/16 3/8 7/16 1/2 9/16 5/8 11/16 3/4 13/16 7/8 15/16	=  .0625 =  .125 =  .1875 =  .25 =  .3125 =  .375 =  .4375 =  .50 =  .5625 =  .625 =  .6875 =  .75 =  .8125 =  .875 =  .9375