Paper Sizes

Standard Paper Sizes

There are many confusing paper sizes for wide format products that are in general use throughout the world. It is important to be aware of these families of sizes because they come into play in this global economy. We have included descriptions of four of the most common ones in this section.

Architectural Size Papers

This is the standard paper size series that is used for architectural purposes. Note that there is a geometric progression between the standard sizes. Specifically, the next larger size (except E1) can be determined by doubling the current size along its short axis. For example, A “D” size print (24×36) is double the size of a “C” print (18×24).

SizeWidth (in)Height (in)Width (mm)Height (mm)
Sizing Preferred by North American Architects and Engineers for Construction Projects
Arch A9.012.0229305
Arch B12.018.0305457
Arch C18.024.0457610
Arch D24.036.0610914
Arch E130.042.07621067
Arch E36.048.09141219

ANSI Series of Paper Sizes

The American National Standards Institute (ANSI) adopted ANSI/ASME Y14.1, defines paper sizes based upon the de facto standard ‘US Letter’ size (8.5”x 11”). They designated that size as ‘ANSI A’ and designated the ‘US Ledger/Tabloid’ size (11″x17″) as ‘ANSI B’. As with the Architectural sizes, there is a geometric progression in the sizes. Specifically, in these standards, the next larger size can be determined by doubling the current size along its short axis.

SizeWidth (in)Height (in)Width (mm)Height (in)
Standard sizes used in the United States for other applications
ANSI A8.511.0216279
ANSI B11.017.0279432
ANSI C17.022.0432559
ANSI D22.034.0559864
ANSI E34.044.08641118

“A” Series Paper Sizes — ISO 218

These “A” paper sizes are used worldwide. The most notable exceptions are the USA and Canada which follow their own standards. In addition, some other countries such as Mexico favor the North American size standards despite the fact that they have officially changed to the ISO standard. As with the other sizes standards discussed above, there is a geometric progression between the sizes.

In general the ISO sizes are slightly smaller than the corresponding North American standards. For example, compare ISO A0 with Arch E, ISO A1 with Arch D, ISO A3 with ANSI B (ledger) or ISO A4 with ANSI A (letter).

SizeWidth (in)Height (in)Width (mm)Height (mm)
The standard paper sizes used worldwide except for North America

Canadian “P” Series Paper Sizes

The Canadian standard CAN 2-9.60M defines aa additional set of metric sizes. These sizes are simply the US ANSI paper sizes rounded to the nearest 5mm, with the P4 size corresponding to the US Letter size..

SizeWidth (in)Height (in)Width (mm) Height (in)
Canadian metric sizes as defined in the CAN 2-9.60M specification.