The 1.1 mm thick pressed cardboard sheet #40 in 74x90 cm format is the ideal thin grey cardboard for precise folding and lightweight box making. Despite its thinness of 1.1 mm, it maintains a high density that prevents the paper from curling when glued. It is excellent for creating folder dividers, personalized packaging and structured invitations. Highly sought after by bookbinding workshops, crafts and model making.