Cushioning allowance
The space added around a product inside the box for protective material.
In practice
The Spec Builder adds the same allowance on every side, so the inside dimension grows by twice the allowance on each axis.
See it on Packgent
Related terms
- Inside dimensions
- The usable space inside a box, listed length × width × depth. Box sizes are quoted by inside dimension.
- Void fill
- Loose material that fills empty space in a box so the product cannot move.
- Right-sizing
- Choosing or making the smallest box that protects the product, to cut board, void fill and dimensional weight.
Definitions written by Packgent, last reviewed 2026-10-27. All terms.