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Chinese Series



The RD4 paper size, a lesser-known yet significant member of the ISO 216 standard series, holds its unique place in the realm of standardized paper dimensions. This particular size is defined by precise measurements: 432 x 559 mm or approximately 17 x 22 inches. It's an intriguing blend of practicality and versatility, making it suitable for various applications.

What sets RD4 apart from other paper sizes is its aspect ratio. The ISO 216 standard series, which includes the popular A4 and B5 sizes, maintains a consistent aspect ratio of √2:1 across all dimensions. However, RD4 deviates from this norm with an unconventional aspect ratio that provides a distinctive layout space.

RD4 paper dimensions


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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

RD4's unique proportions make it ideal for specific uses where traditional formats may fall short. For instance, architectural plans and engineering drawings often require more horizontal space to accommodate detailed schematics - a requirement that RD4 fulfills admirably.

Moreover, the RD4 size also finds its niche in the printing industry. Its larger surface area allows for higher resolution prints without scaling up the original artwork or compromising on detail quality - a feature highly appreciated by graphic designers and artists alike.

While not as widely recognized as its A-series counterparts, the RD4 paper size offers unique advantages that cater to specific needs within various industries. Its distinct dimensions provide both functional benefits and creative opportunities - making it an invaluable asset in professional settings where precision and flexibility are paramount.

Other Formats in the Chinese Series

Interesting facts about RD4

1: RD4 Paper is a Specialty Paper

RD4 paper is a type of specialty paper that is specifically designed for use in high-speed inkjet printers. It has unique properties that allow it to absorb ink quickly and evenly, resulting in sharp and vibrant prints.

2: RD4 Paper is Water-Resistant

One of the key features of RD4 paper is its water-resistant nature. This means that even if the printed documents come into contact with water or other liquids, the ink will not smudge or run, ensuring the durability and longevity of the prints.

3: RD4 Paper has Excellent Color Reproduction

RD4 paper is known for its exceptional color reproduction capabilities. It can accurately reproduce a wide range of colors, making it ideal for printing photographs, marketing materials, and other graphics-intensive documents.

4: RD Series Papers are Part of ISO Standard Sizes

The RD series papers, including RD0, RD1, RD2, and so on up to RD6, are part of the ISO standard sizes for papers. These sizes are widely used in various industries across different countries around the world.

5: The Origin of ISO Standard Sizes

The ISO standard sizes were first introduced by a German scientist named Dr. Walter Porstmann in 1922. The goal was to establish a consistent system for paper sizes that would simplify printing processes and reduce waste.

6: The A Series vs. The B Series

The A series (A0-A10) within the ISO standard sizes focuses on proportionality while maintaining consistent width-to-height ratios. On the other hand, the B series (B0-B10) is designed to provide a range of sizes that are slightly larger than their corresponding A series counterparts.

7: RD4 Paper Size

The RD4 paper size measures approximately 860 mm x 1220 mm (33.9 in x 48.0 in). It is commonly used for large-format printing applications, such as posters, banners, and architectural drawings.

8: RD Series Papers and Their Uses

Each paper size within the RD series has its own specific uses. For example, RD1 is often used for maps and blueprints, while RD2 is commonly employed for technical drawings and schematics. The larger sizes like RD5 and RD6 are typically utilized in industrial printing processes.

9: Specialty Coatings on RD4 Paper

To enhance the print quality and durability of RD4 paper, it can be coated with specialty finishes such as gloss or matte coatings. These coatings not only protect the prints from scratches but also add a professional touch to the final product.

10: Environmental Considerations

RD series papers are available in various environmentally friendly options. Some versions are made from recycled materials or sourced from sustainably managed forests, ensuring minimal impact on the environment during production.