Q.1083: What is C1 sheet size? , What is iso c1?

Ans. The C series is used for folders, post cards and envelopes. C series envelope is suitable to insert A series sizes.

As per ISO (International Standard Organization) C series cut sheet sizes, C1 is 648 mm wide and 917 mm long sheet. Equivalent size in inches is 25.53" wide and 36.10" long.

For all ISO and US sizes, click here

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