Technical Terms • Types of Boxes • How to Measure a Box
How to Pack a Fragile Item • Shipping Guide for UPS • Shipping Hazardous Materials

The dimensions of a box are given in the sequence of length, width, and depth.
(L x W x D)

The length is the LARGER of the two dimensions of the open face (flap opening);
while the SMALLER of the dimension measurements is the width.

The depth is always the distance measured perpendicular to the length
and width between the innermost surfaces of the box.


Unless otherwise specified, the size of a box is the inside dimensions.