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

ISO vs. U.S. and Canadian drawing sheets.

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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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Related Topics

Miscellaneous - Engineering related topics like Beaufort Wind Scale, CE-marking, drawing standards and more.
Drawing Tools - 2D and 3D engineering drawing tools.

Related Documents

ANSI - American National Standards Institute - ANSI provides a forum for development of American national standards.
Building Tolerances - Typical tolerances for floors, walls, columns and more.
Drawing Scales - Commonly used blueprint drawing scales.
Drawings - Standard Metric Sizes - Standard metric drawing sheet sizes.
Mapping Scales vs. Lengths and Areas - Convert lengths areas between different mapping scales.
Paper Drafting Sizes - ISO 216 series A, B and C - ISO 216 A, B and C drawing series - dimensions of regular, oversized and envelope sheets.
Paper Sizes - commonly used in U.S. Offices - Office paper sizes as Letter, Legal, Tabloid and more.
Paper Sizes - Imperial - Printing and drawing papers sizes.
US Standard Architectural Drawing Sizes - US architectural drawing sizes and formats.
US Standard Engineering Drawing Sizes - US engineering drawing sizes based on ANSI/ASME Y14.1.

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