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I would like to know the differences between and Architectural and ANSI paper sizes. Could you list the two of these for me?
Architectural and ANSI (American National Standards Institute) are two paper size standards commonly used in the United States.
Below are the Architectural and ANSI paper sizes, listed in inches.
To learn more about paper sizes not listed here, such as those used in other countries, please see Wikipedia's article on Paper Size.