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Architectural Paper sizes

A overview of the architectural paper sizes. Commonly used in the US for commercial architectural and landscaping drawings (drafting documents).

Architectural Paper sizes

Name Secondary name Size in millimeters Size in inches
Arch A Arch 1 229 mm x 305 mm 9 in x 12 in
Arch B Arch 2 305 mm x 457 mm 12 in x 18 in
Arch C Arch 3 457 mm x 610 mm 18 in x 24 in
Arch D Arch 4 610 mm x 914 mm 24 in x 36 in
Arch E1 Arch 5 762 mm x 1067 mm 30 in x 42 in
Arch E Arch 6 914 mm x 1219 mm 36 in x 48 in

Before 1995 a different paper size was used called the American National Standard ANSI/ASME Y14.1, or the ANSI sizes for short. In 1995, the revises the standard and created the architectural paper sizes.

ANSI Paper sizes

ANSI Name Size in millimeters Size in inches
A 216 mm x 279 mm 8.5 in x 11 in
B 279 mm x 432 mm 11 in x 17 in
C 432 mm x 559 mm 17 in x 22 in
D 559 mm x 864 mm 22 in x 34 in
E 864 mm x 1118 mm 34 in x 44 in

About the author

Damien van Holten Hi there! My name is Damien. I'm a designer & developer. I’ve got a passion for awesome code and I love tea with lots of milk. I’m currently located in lovely Rotterdam, the Netherlands.

Questions, comments or just want to talk? I'm happy to get in touch with you. Don't hesitate to email me or contact me on twitter: @damienvanholten.