ARCH paper sizes are the standard US architectural drawing sizes. The illustration below shows how they ARCH paper sizes are organized.
ARCH Paper Sizes
ARCH paper standards are used mostly in the US and parts of Latin America.
Arch A
9 in. x 12 in.
(229 mm x 305 mm)
Arch B
12 in. x 18 in.
(305 mm x 457 mm)
Arch C
18 in. x 24 in.
(457 mm x 610 mm)
Arch D
24 in. x 36 in.
(610 mm x 914 mm)
Arch E
36 in. x 48 in.
(1914 mm x 1219 mm)
Arch E1
30 in. x 42 in. (not shown in the illustration)
(762 mm x 1067 mm)
Arch E2
26 in. x 38 in.
(660 mm x 965 mm)
Arch E3
27 in. x 39 in.
(686 mm x 991 mm)
