Inner Liner: Made from corrugated cardboard, providing cushioning and structural support. Common flute types include A, B, and C, with A offering the most cushioning and C the most stacking strength.
Outer Liner: Typically made from Kraft paper or white-lined Kraft paper, offering rigidity and a printable surface. Recycled content options are increasingly available for eco-conscious businesses.
Combined board thickness: Ranges from 2mm to 7mm, depending on the desired strength and rigidity. Higher thickness offers better protection for heavier items.
Individual liner thickness: Each liner can have different thicknesses within the overall range. For example, a box might have a thicker outer liner for printing and a thinner inner liner for weight efficiency
