The weight of paper can be a confusing topic, especially when discussing the peculiar measurements used in the United States. However, understanding the weight of paper is essential when selecting the right type for various applications. In this article, we will explore the weight of 20-pound bond paper and clarify the measurement system used. Additionally, we will compare it to other paper weights and discuss the advantages of the metric system’s approach to measuring paper.
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The term “20-pound bond paper” refers to the basis weight of the paper, which is a measurement of the weight of a ream of paper (500 sheets) at a standard size. In the case of 20-pound bond paper, a ream of 500 sheets weighs 20 pounds (9.07 kilograms). Therefore, each sheet of 20-pound bond paper would weigh approximately 0.04 pounds (18 grams) or 0.018 kilograms.
When we refer to “20-pound bond paper,” we are actually discussing the basis weight of the paper. Basis weight is the weight of a ream of paper (500 sheets) at a standard size. In the case of 20-pound bond paper, a ream of 500 sheets weighs 20 pounds (9.07 kilograms).
Understanding the Weight:
To further simplify, the manufacturer would typically cut a standard sheet of bond paper, measuring 17 inches by 22 inches, into four letter-size sheets. This means that a 500-sheet ream of 20-pound bond paper weighs approximately 5 pounds (2.27 kilograms).
Comparison to Other Paper Weights:
It’s important to note that different paper types and weights exist. For instance, Bristol paper is heavier and stiffer, similar to the paper found in manila file folders. Bristol paper has a different standard sheet size, measuring 22.5 inches by 28.5 inches. Therefore, the weight of a ream of Bristol paper may vary compared to bond paper due to the different sheet sizes.
Thicker Paper Options:
When purchasing bond paper, you may encounter various weight options, such as 20-pound and 24-pound bond paper. In this context, the higher the pound weight, the thicker the paper. Therefore, 24-pound bond paper is heavier, thicker, and more opaque than 20-pound bond paper. The choice between these options depends on specific printing or writing needs.
The Metric System's Approach:
While the United States uses a somewhat complex system for measuring paper weight, the metric system offers a more straightforward method. In the metric system, paper weight is measured in grams per square meter (gsm). For instance, A0 paper is precisely one square meter, with one side measuring 84.1 centimeters and the other side measuring 118.9 centimeters. Each subsequent paper size, such as A1, A2, and so on, halves the dimensions while maintaining the square root of 2 rule.
Conclusion:
Understanding the weight of paper, specifically 20-pound bond paper, is crucial when selecting the appropriate type for various tasks. Remember that a ream of 20-pound bond paper weighs approximately 5 pounds, and its thickness can vary depending on the desired weight. While the United States employs a unique measurement system, the metric system’s grams per square meter approach offers a simpler way to gauge paper weight. By considering these factors, you can make informed decisions when choosing paper for printing, writing, or other purposes.
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