Take-up factor

How much more medium goes into a length of board than the board's own length, because the medium is fluted.

In practice

It multiplies the medium's basis weight when combined board weight is calculated.

See it on Packgent

Related terms

Medium
The paper that is fluted on the corrugator and sits between the liners.
Basis weight
The weight of a fixed area of paper, in the US usually pounds per thousand square feet (lb/MSF).
Flute
The wave-shaped medium inside corrugated board, and the size class of that wave (A, B, C, E, F).

Definitions written by Packgent, last reviewed 2026-10-27. All terms.