In paper corrugation there are multiple flute types like A,B,C,D and E. E-flute board thickness is usually 1.5 mm and is used for forming smaller size boxes. Only difference between a non-corrugated printed carton and E-Flute Carton is that the customers want both strength of a corrugated box and beauty of a printed carton. These cartons are usually wanted by hardware products or Ceramic article manufacturers because there products are both heavier in weight as well as in requirement of good branding.