Paper Drafting Sizes - Comparing ISO and U.S. Drawing Sheets

ISO compared with U.S. and Canadian drawing sheets

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Iso paper sizes

The table below can be used to compare ISO drawing sheets (based on ISO 216) with to American drawing sheets (based on ANSI/ASME 14.1):

ISO					USA Sizes
Letter	Width		Length		Letter	inches
Letter	mm	inches	mm	inches	Letter	inches
					F	28.0 x 40.0
A0	841	33.11	1189	46.81	E	34.0 x 44.0
A1	594	23.39	841	33.11	D	22.0 x 34.0
A2	420	16.54	594	23.39	C	17.0 x 22.0
A3	297	11.69	420	16.54	B	11.0 x 17.0
A4	210	8.27	297	11.69	A	8.5 x 11.0

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en: ISO A0 A1 A2 A3 A4 A5 USA

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