How much paper should I use to write the calligraphy that rewards the diligent?

The size of the calligraphy ruler depends on the actual situation, where do you want to hang it, whether the banner is vertical, framed or vertical; There are also the author's writing habits, the conditions of writing paper with a brush at hand and so on. These should be fully considered. The simplest and most commonly used is a four-foot strip (length 138cm, width 34cm).