Quarto is to divide a piece of paper into four equal parts and take one. "How many times" refers to dividing a piece of paper into several equal parts, and the size of one part. In this way, there are two cutting methods: one is to fold the two wide edges of a piece of paper in half by overlapping and aligning, and then fold it in half again according to this method. The size of the four folds is 34.5 × 69 cm. Another cutting method is to fold the two wide edges of a piece of paper in half first, and then fold the original two long edges in half once. This quadrupling method has the same size as the former method, but the paper presents different lines.
Different sizes of rice paper generally include:
Sichixuan: 138cm× 69cm
Five-foot announcement: 153cm× 84cm