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US Envelope Series



Commercial paper size, a critical component in the world of print and design, adheres to specific standards set by the International Organization for Standardization (ISO) and the American National Standards Institute (ANSI). This standardization ensures consistency across various industries and applications.

The ISO 216 series, which includes A, B, and C sizes, is widely recognized globally. The Commercial paper size falls under the C series. It's specifically designed to accommodate envelopes that are suitable for A series paper sizes. For instance, a C4 envelope can comfortably fit an A4 sheet of paper.

Commercial paper dimensions


View All US Envelope Series

2A046.81 x 66.221189 x 1682119 x 1683370 x 4768
A120.51 x 0.7113 x 181 x 237 x 51
4A066.22 x 93.621682 x 2378168 x 2384768 x 6741
A110.71 x 1.0218 x 262 x 351 x 74
A101.02 x 1.4626 x 373 x 474 x 105
A3+12.95 x 19.02329 x 48333 x 48933 x 1369
A1+23.98 x 35.98609 x 91461 x 911726 x 2591
A0+35.98 x 50.87914 x 129291 x 1292591 x 3662
A64.13 x 5.83105 x 14811 x 15298 x 420
A55.83 x 8.27148 x 21015 x 21420 x 595
A48.27 x 11.69210 x 29721 x 30595 x 842
A311.69 x 16.54297 x 42030 x 42842 x 1191
A91.46 x 2.0537 x 524 x 5105 x 147
A216.54 x 23.39420 x 59442 x 591191 x 1684
A82.05 x 2.9152 x 745 x 7147 x 210
A123.39 x 33.11594 x 84159 x 841684 x 2384
A72.91 x 4.1374 x 1057 x 11210 x 298
A033.11 x 46.81841 x 118984 x 1192384 x 3370

On the other hand, ANSI standards are predominantly used in North America. The ANSI B size is equivalent to the Commercial paper size in terms of dimensions. This compatibility allows for seamless international correspondence and exchange of documents.

An intriguing fact about Commercial paper size is its aspect ratio. Regardless of how it's scaled up or down, it maintains an aspect ratio of 1:√2 (approximately 1:1.41). This unique feature enables easy resizing without distorting or compromising the original layout or design elements.

Understanding Commercial paper size is essential for anyone involved in print media or graphic design. Its adherence to ISO and ANSI standards ensures global consistency while its unique aspect ratio facilitates effortless scaling.

Other Formats in the US Envelope Series

Interesting facts about Commercial

1: The A Series Paper Sizes

The A series paper sizes, which are commonly used worldwide, were first introduced in Germany in the 1920s. The dimensions of each size are based on a mathematical formula that ensures consistent proportions between the different sizes.

2: The B Series Paper Sizes

The B series paper sizes, also widely used globally, were developed as an alternative to the A series. These sizes have slightly different proportions and are often used for posters, envelopes, and other applications where a larger format is required.

3: The C Series Paper Sizes

The C series paper sizes are primarily used for envelopes. They have the same width as their corresponding A or B size but are slightly longer to accommodate folded documents.

4: US Letter Size vs. A4 Size

In most countries outside of North America, the standard size for office documents is A4 (210 x 297 mm), while in the United States and Canada, it is US Letter (8.5 x 11 inches). This difference can sometimes cause compatibility issues when printing or copying documents internationally.

5: Watermark Security Features

Commercial papers often include watermark security features to prevent counterfeiting. These watermarks are created by impressing a design onto the paper during manufacturing using special dandy rolls or engraved plates.

6: Recycled Content

To promote sustainability and reduce environmental impact, many commercial papers now contain recycled content. This helps conserve natural resources and reduces waste generation.

7: Specialty Coatings

Commercial papers can be coated with various specialty finishes to enhance their appearance or functionality. Examples include glossy coatings for vibrant colors, matte coatings for a sophisticated look, and water-resistant coatings for durability.

8: Paper Weight Measurement

Paper weight is measured in grams per square meter (gsm) or pounds (lb). The higher the gsm or lb value, the thicker and heavier the paper. Different weights are suitable for different applications, such as lightweight papers for everyday printing and heavyweight papers for brochures or business cards.

9: Archival Quality Papers

Archival quality papers are specifically designed to resist deterioration over time. They are acid-free and lignin-free, ensuring that documents printed on them will last longer without yellowing or becoming brittle.

10: Paper Grain Direction

Paper has a grain direction that affects its flexibility and strength. Long-grain paper has fibers aligned parallel to the longer side of the sheet, while short-grain paper has fibers aligned parallel to the shorter side. Understanding grain direction is important when folding or binding documents to ensure optimal results.