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

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About the author

Damien van Holten is a designer and web developer currently working for an advertising agency in lovely Rotterdam, the Netherlands. In his free time he enjoys drinking tea with lots of milk and listening to Death Cab for Cutie.

He's obsessed with graphic design and web standards. Read more about Damien van Holten.