How to Measure a Box
To measure a box, use a ruler or measuring tape. Measure the length, width and height of the box. Listed dimensions are always inside dimensions.
- The first dimension to measure is length. Length is always the longest side of the box that has a flap.
- The next dimension to measure is width. The width side also has a flap, but is always the side shorter than the length.
- Measure the height of the package. Height is the only dimension without a flap. Measure the standing side of the box from top to bottom. The height measurement does not include flaps.
Note: Acceptable manufacturing variance is +/- 1/8".