If you need extremely large quantities of leaflet printing - kaizenprint, we may recommend our litho printing options to gain economies of scale on the printing, we may recommend our litho printing options to gain economies of scale on the printing. We print letterheads in A5 and A4 size, but as a general rule, letterheads are A4 in size. Like our Compliments Slips, we only print letterheads on a premium 120gsm Uncoated as this ensures consistency across your stationery.