Data

Table 4 shows the calculated inputs and outputs for the production of 1 tonne of corrugated board products in Europe with an average corrugated base paper composition. The production of corrugated board is normally expressed in m2. However, for LCA it is preferable to have it expressed in weight.
For the average corrugated board product, the paper input is 1.12 tonnes/tonne corrugated board, with an output of 0.12 tonnes paper for recycling. 
The original five datasets for the four main paper grades and corrugated board/box production from which the data are derived, are reported in the Annex. The data for the corrugated box is calculated by multiplying the average paper grade composition by 1.12 and adding the corrugated board/box data reported in the Annex.

^{Table 4 - Life cycle inventory for the production of 1 tonne of corrugated boxes in Europe, with average corrugated base paper composition}