Skip to main content

Poster Series



Recognized as a versatile and adaptable size, the 12x18 paper size is an integral part of the print industry. This dimension, measured in inches, is not directly associated with any specific ISO or ANSI series. However, it holds a unique position in the realm of custom printing and design.

The 12x18 paper size offers ample space for creative expression. It's often utilized for posters, diagrams, large format drawings, and other visual materials that require a larger canvas. The dimensions provide an ideal balance between visibility and portability.

12×18 paper dimensions


View All Poster 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

Interestingly enough, when folded in half along its longest side, the 12x18 paper transforms into a standard letter-sized document (8.5x11 inches). This makes it an excellent choice for creating booklets or brochures that can be easily mailed or distributed.

In terms of digital representation, this paper size translates to 3600 x 5400 pixels at 300 DPI (dots per inch), ensuring high-quality prints with sharp details and vibrant colors.

Overall, the versatility of the 12x18 paper size makes it a valuable asset in both professional and creative fields. Its adaptability to various formats coupled with its optimal balance between size and portability underscores its significance in print media.

Other Formats in the Poster Series

Interesting facts about 12×18

1: The Origins of 12x18 Paper

12x18 paper is part of the ANSI B series, which was introduced by the American National Standards Institute (ANSI) in the mid-20th century. It was designed to provide a standardized size for engineering and architectural drawings.

2: The Aspect Ratio

The aspect ratio of 12x18 paper is 1:1.5, meaning that its length is one and a half times its width. This aspect ratio allows for easy scaling and resizing without distorting the content.

3: Common Uses

Due to its larger size compared to standard letter or legal paper, 12x18 paper is commonly used for printing posters, flyers, brochures, and other promotional materials. Its dimensions offer ample space for graphics and text.

4: International Equivalents

The international equivalent of 12x18 paper is known as A3+ or Super A3. It has slightly different dimensions (329mm x 483mm), but it serves a similar purpose in countries that use ISO paper sizes instead of ANSI sizes.

5: Variations in Weight

Paper weight can vary significantly within the same size category. For example, you can find both lightweight and heavyweight options in the 12x18 format depending on your specific printing needs.

6: Compatibility with Printers

Sometimes printers have limitations when it comes to handling larger-sized papers like 12x18. It's important to check your printer's specifications before attempting to print on this type of paper to ensure compatibility.

7: Specialty Finishes

12x18 paper is available in various specialty finishes, such as glossy, matte, or satin. These finishes can enhance the visual appeal of printed materials and provide different textures for a desired effect.

8: Environmental Considerations

When choosing 12x18 paper or any other type of paper, it's worth considering eco-friendly options. Many manufacturers now offer recycled or sustainably sourced papers to reduce environmental impact.

9: Customization Options

If you require specific features for your 12x18 paper, such as perforations, hole punching, or custom watermarks, professional printing services can often accommodate these requests to meet your unique needs.

10: Paper Preservation Techniques

To ensure the longevity of printed materials on 12x18 paper or any other size, it's advisable to store them in acid-free folders or sleeves and keep them away from direct sunlight and excessive humidity.