Generally speaking, according to the current international and domestic standards, the large 32 format is 203× 140mm, and the small 32 format is 184× 130mm.

The format size stipulated by the state is an international standard series, which has been incorporated into the national industry standard GB/T 1999 and implemented nationwide. At present, the format size of books and periodicals is mainly series A specifications, as follows: A4 (16k) 297mm× 210mm; a5(32k)2 10mm× 148mm； There are three models of A6 (64k)144mm×105mm, of which A3(8k) has not been determined, but 420mm×297mm is widely used. A2 (2k) 420mm× 594mm.

Extended data:

Layout size refers to the actual size of the book layout after binding and cutting according to the specified layout. According to the national standard, the allowable error of format size is1mm.

The format size stipulated by the state is an international standard series, which has been included in the national industry standard GB/T 788- 1999 "Format Size of Books and Periodicals".

Commonly used format size:

8 format: 374×262mm, small 8 format: 368×260mm；; ;

Large 16 format: 262× 187mm, small 16 format: 260×184 mm;

Big 32 format: 203× 140mm, small 32 format:184×130mm;

Big 64 format:13/kloc-0 /×101mm or 130×99mm,

Small 64 format: 127×95mm or 125×92mm.

References:

Format size-Baidu Encyclopedia