In my aluminum packing line,The “printer” (machine n°1) is for marking pieces so the stacking system should accumulate from 10 to 30 or even more pieces to complete 1.4m of width, which is the same width of our racking boxes. In the case of the packing machines (manual n°2 and automatic n°3) the stacking system should accumulate from 7 to 14 packages to complete 1.4m width as we use the same racking boxes to store the packaged material than we use to store the printed pieces or the non printed pieces. You should keep in mind that our pieces go from 1 to 15 kg per piece and we package the pieces in a quantity correct to make packages from 20 to 30 kg per aluminum profile package. Hope this explanation helps you. Please check previous email were dimensions were informed.