How Is Paper Weight Determined? - PaperPapers Blog (2024)

Even with the increasing use of technology in the workplace, paper is still a necessary feature for any office. It has even been estimated that each office worker in the United States uses about 10,000 sheets of paper every year.

Despite its continued use in offices throughout the United States, many businesses still have several questions about what wholesale paper they should be using, especially when it comes to paper weight. The following are a few questions and answers about paper weight and its various business applications.

How is Paper Weight Measured?

Paper weight can often be confusing since there are three ways to officially measure paper weight: the U.S. basis weight, the metric weight, and the points (or mils) system.

TheU.S. basis weightis provided in pounds and is based on the weight of 500 sheets of paper for the basis size of a particular type of paper. For instance, the basis size of watercolor papers is 22 inches by 30 inches, and if you place 500 sheets of this style of paper on a scale, you’ll know the official paper weight.

Another method of measuring paper weight is themetric weight, which is measured in grams. This method measures the weight of a style of paper by weighing a 1×1 meter square of the of the paper and recording the weight in grams per meter squared (g/m^2).

Finally, paper weight can be measured using the points or mil system, which uses calipers to measure the exact thickness of one sheet of a paper style. Deciding on what method your business should order paper weight in is important to getting the right paper for your company’s purposes.

What Are Some Common Weights?

Now that you know the differences in how paper weight is measured, your company should know the common weights for several styles of paper. Cardstock wholesale paper can weigh from 50 to 110 pounds (135-300 g/m^2). Watercolor weighs at 140 pounds (300 g/m^2) and is slightly heavier than other styles of paper due to its use in holding water. Text paper, on the other hand, can vary from 50 to 100 pounds (74 to 148 (g/m^2) depending on the coating used (white shimmer paper, matte paper, etc). Remember these common weights next time your business needs to order more paper.

Understanding the difference between paper weights when buying bulk paper or wholesale paper can help your company know which style paper they need for their purposes. This, in turn, can decrease paper and financial waste since there is no need to waste money on unnecessary wholesale paper.

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  1. How Is Paper Weight Determined? - PaperPapers Blog (2)Captain Quirk

    Useless info without telling us what the basis size of ordinary copier/inkjet paper is.

    You said something about “text” paper typically being 50 to 100 lbs, but that can’t be right, because 95% of the paper I see at office supply stores is 20 lb stock. Sometimes I see 24 lb for slightly heavier stock. But that’s a far cry from 50 to 100 lbs! So what gives?

    As I said — this article is ultimately useless and fails to answer the most common and basic question about how paper weights are calculated for ordinary office paper. (Nobody cares about watercolor paper!) >:-(

    Reply

    • How Is Paper Weight Determined? - PaperPapers Blog (3)Matt

      The weight of the stock you see in an office supply store is “bond” weight.
      The weight referenced in the article (50 – 100#) is what they call “offset” paper.

      20# bond paper = 50# offset
      24# bond paper = 70# offset

      It’s the different ways that paper thickness are expressed within the commercial printing industry. Offset weights are calculated by measuring the weight of 500 sheets of 25″ x 38″ paper while bond weights are calculated by taking the weight of 500 sheets of 17″ x 22″ stock. Essentially, if you take 500 sheets of offset press paper (the larger size) it should equal 50 lbs on a scale. If you take 500 sheets of the same stock but at 17″ x 22″ size, it will equal 20 lbs on a scale.

      The difference being that press operators refer to offset paper weights for their presses and digital operators (like, say, a highspeed Oce copier) will refer to bond weights.

      Confusing, I know.

      It’s an attempt to cross reference weights within the printing world.

      Reply

      • How Is Paper Weight Determined? - PaperPapers Blog (4)PaperPapers

        Thank you for your contribution! We’d love to re-write this article and add your information -or- better yet, love to have you contribute more to some of our pages lacking the technical data.

        Reply

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How Is Paper Weight Determined? - PaperPapers Blog (2024)

FAQs

How is paperweight determined? ›

Paper weight is typically measured in pounds (lbs), and the standard paper size is known as basis weight. This means that 500 sheets of the standard-size paper weigh a certain number of pounds. Basis weights are based on a material's specific gravity or density, so it can vary from one type to another.

How do you calculate the specific weight of paper? ›

Paper Weight Calculation Formulas

Length(cm)/100 x Width(cm)/100 x GSM/1000 x no. of sheets = Total Kilograms (KG) required. The reason we divide Length and Width by 100 is to convert the Centimeter to Meter. The reason we divide GSM by 1000 is to convert Grams per sq meter to Kilograms per sq meter.

How to choose paper weight? ›

20-24 lb paper: Ideal for everyday use such as printing standard documents, reports, and forms. 28-32 lb paper: A step up in quality and feel, perfect for professional documents like business proposals where a little heft is appreciated. 40-100 lb paper: Commonly used for brochures, booklets, and flyers.

What is the basis weight of paper? ›

The basic size varies from category to category, but the Basis Weight of a given paper stock is always based on 500 sheets of the paper in its basic size. For example, the basic size of Bond paper is 17" x 22". If 500 sheets of 17" x 22" Bond paper weigh a total of 20 pounds, then the paper is labeled as 20lb or 20#.

How to determine cardstock weight? ›

Cardstock is typically classified by weight, measured in pounds (lbs) per 500 sheets of paper. Cardstock weight ranges from around 65 lbs (thinnest cardstock) to 110 lbs (thickest cardstock). Cardstock can also be measured by GSM (grams per square meter). GSM refers to the actual weight of the cardstock sheet itself.

Why can paper weight be misleading? ›

The part that can get confusing when weighing paper in pounds is that not all paper types have the same basis size. For example, drawing papers have a basis size of 24”x36”, versus watercolor papers which have a basis size of 22”x30”. 500 Sheets of 400 Series Drawing paper (24”x 36”) weighs 80lbs.

How much do 500 pages of paper weigh? ›

For standard office paper in the United States and Canada (letter size), the weight of 500 sheets is typically around 5 pounds or 2.27 kilograms. This weight is based on the standard weight of 20-pound bond paper, where 500 sheets of 8.5 inches x 11 inches paper make up a ream.

How thick is 100 lb paper? ›

What is the difference between 100 lb Text and 100 lb Cover?
Paper Thickness
Paper TypeApprox. Caliper (Thickness)
65lb Opaque Cover — uncoated.009″
80lb Opaque Cover — uncoated.011″ (11pt thick)
100lb Opaque Cover — uncoated.014″ (14pt thick)
23 more rows
Jan 6, 2024

How do you measure the thickness of paper weight? ›

Paper caliper is the measurement of the thickness of a single sheet of paper using a device called a micrometer or a caliper. Paper caliper is usually expressed in points (pt), where one point equals 0.001 inch or 25.4 µm.

What is the formula for calculating GSM of paper? ›

What is the GSM formula? To determine the GSM (Grams per Square Meter) of paper, you can employ the GSM formula. The GSM Calculation will be done by multiplying the weight of the paper sample in grams by 1000 and then dividing the result by the area of the sample in square centimeters.

What is the rule of specific weight? ›

The specific weight, also known as the unit weight (symbol γ, the Greek letter gamma), is a volume-specific quantity defined as the weight per unit volume of a material.

What is the most common paper weight? ›

20 lb.

This is the standard weight of most copy paper, and the thinnest/lightest weight we offer. It's perfect for everyday printing and copying on laser and inkjet printers for projects at home, school, or in the office.

What factors should you consider when selecting paper weight for your project? ›

When selecting the appropriate paper weight, it's important to consider factors such as cost, durability, texture, and finish options. At Replica Printing, we understand the importance of selecting the right paper weight for your business cards.

Why do you need a paper weight? ›

A paperweight is a small solid object heavy enough, when placed on top of papers, to keep them from blowing away in a breeze or from moving under the strokes of a painting brush (as with Chinese calligraphy).

What does 20 lb weight paper mean? ›

The basics of this standard are as follows: Bond has a standard size of 17 x 22" and this is the size that is measured for 500 sheets. If 500 sheets of this size weigh 20lbs., then the paper is classified as a 20lb. bond. Heavier and lighter stocks will obviously be thicker or thinner than the 20lb.

What is the difference between 80lb and 100lb paper? ›

Same Paper, Different Weight: Both are made out of the same raw materials and out to the same production equipment. So we know the 100lb paper is 25% heavier than the 80lb gloss text and therefore thicker than the 80lb paper.

What do the police do to the paperweight? ›

What happens to the paperweight in ''1984''? Winston and Julia are arrested in the apartment for committing crimes against the government. It is at this point that the glass paperweight is dropped and shattered by the police.

What is the significance to the paperweight? ›

The Glass Paperweight Symbol Analysis. The old glass paperweight sold to Winston by Mr. Charrington represents the past. The level of craftsmanship required to make it is no longer achievable, since production standards have dropped and the Party has abolished beauty for its own sake.

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