Normal (domestic standard) paper: 787× 1092mm.
Number of openings (positive degree) Size unit (mm)
Fully open 78 1× 1086
2 Quarts 530×760
362×78 1
4 quarto 390×543
6 quarts 362×390
8 kai271× 390
16 195×27 1
Wide and thick (international standard) paper: 850× 1 168mm.
Open number (measurement) Size unit (mm)
Fully open 844× 1 162
2 kai581× 844
3 open 387×844
4 quarto 422×58 1
6 quarts 387×422
8 quarts 290×422
Note: finished product size = paper size-trimming size
Extended data:
Paper size refers to the paper size range supported by folding machine and collating machine, which generally includes the maximum size and minimum size, and is generally expressed by paper specifications. If it is larger or smaller than the paper in this size range, the product will not be folded and matched.
According to the size, folio is usually divided into three types: large format, medium format and small format. For 787× 1092 paper, 12 format is large format, 16 ~ 36 format is medium format, and 40 format is small format, but books with mainly characters are generally medium format. Folio shapes are rectangles with different proportions except 6 quarts, 12 quarts, 20 quarts, 24 quarts and 40 quarts, which are suitable for books with different properties and uses.