Guide on GSM in Paper | Everything You Need to Know

You must have seen the word “GSM” whenever you have purchased any diary, notebook, journal, or paper-based stationery product. But what exactly does it mean, and why is it so important? This blog will explore the meaning of GSM in paper, its significance, and how it impacts your choices.

GSM Meaning in Paper: A Fundamental Concept

GSM full form in paper is "grams per square meter." It is a measurement of a paper's weight. It allows you to accurately measure the paper’s density and thickness. In simpler terms, it tells you how much one square meter of a particular paper weighs. The higher the GSM, the heavier and generally thicker the paper. This measurement is very important because it provides a standardized way to compare paper weights, regardless of the paper's size or type. Paper uses are based on the GSM and that is why it is very important to know the GSM of the paper before using it. For example, low GSM paper is used for pamphlet printing, low-quality bill books, and more, while high GSM paper is used for premium notebooks, journals, diaries, business stationery, and more.

Relation Between GSM and Paper Thickness

Paper thickness is measured in microns (µm), while GSM indicates weight and is measured in grams. it is closely related to thickness. However, it is important to note that the relationship between GSM and thickness is not linear. Two papers with the same GSM can have different thicknesses due to differences in fiber density and manufacturing processes. Two very important points you must know when you are reading GSM on the back of your favourite notebook:

• Higher GSM does not always mean thicker paper: The density of the paper also counts, which increases the GSM of the paper, while the thickness remains low.
• Higher GSM does not always mean better paper: The paper can have high GSM but can be rough and recycled, making it thicker but poor in quality. You must have seen brown packing papers, also known as craft paper, which are heavier and have high GSM but you cannot write on them due to poor quality.

How to Measure GSM in Paper

Measuring GSM requires specialized equipment. In industrial settings, a precise cutting tool and a sensitive weighing scale are used to determine the weight of a one-square-meter sample. For everyday consumers, however, the GSM is usually provided by the paper manufacturer.

GSM for Different Paper Types

Different paper types require varying GSM levels. Here are some common examples:

• Standard Office Paper (A4): Typically ranges from 70 GSM to 100 GSM.
• Drapvision Premium Spiral Paper: 80 GSM Ivory Paper, crafted for notes and practice, you can use gel or ink pens freely, as the ink will not smudge or bleed on the back side.
• Inkjet Photo Paper: Usually 200 GSM or higher, offering a heavier, more durable finish. Photo papers have a resin coating on them, which is a special kind of treatment done on the paper to increase its ink-absorption capacity.
• Business Cards: Often 250 GSM to 400 GSM, for heavier and more durable use.
• Brochures and Flyers: Can range from 130 GSM to 170 GSM, balancing weight and durability.
• Cardstock: Commonly 200 GSM to 400 GSM, known for its strength and semi-solid-like feel. We use 400 GSM cardstock for our covers so that they provide durability and strength.

Standard GSM for Paper Types (A4, Photo Paper and More)

The standard GSM for various paper types is usually given for the specific requirements of their use. For example, A4 paper for everyday printing needs to be lightweight and cost-effective, hence the lower GSM. Photo paper, on the other hand, requires a higher GSM to ensure durability and a premium feel.

GSM Paper Weight Guide

A GSM paper weight guide helps you select the appropriate paper for your needs. Here is a simplified guide:

• 35-55 GSM: Very thin paper, often used for newspapers.
• 70-90 GSM: Standard office paper for everyday printing.
• 90-120 GSM: Slightly thicker paper, suitable for brochures and flyers.
• 130-170 GSM: Medium-weight paper, ideal for posters and presentations.
• 200-300 GSM: Heavyweight paper, used for business cards and covers.
• 300+ GSM: Very heavy paper, used for premium applications like packaging and high-quality cards.

80 GSM vs. 100 GSM Paper: Understanding the Difference

The difference between 80 GSM and 100 GSM paper may seem small, but it is noticeable. 100 GSM paper is slightly thicker and heavier, providing a more substantial feel. It is less prone to wrinkling and tearing, making it suitable for documents that require durability. 80 GSM is great for writing and printing, however, at Drapvision we use 80 GSM ivory paper which is far superior to normal 80 GSM paper.

Which GSM Paper is Best for Printing?

The best GSM for printing depends on the specific application. For everyday documents, 80 GSM to 100 GSM is sufficient. For high-quality prints like photographs, 200 GSM or higher is recommended.

Best GSM for Printing: Specific Applications

Let us see the GSM range for various applications:

• Everyday Documents: 80-100 GSM
• Presentations: 100-120 GSM
• Letterheads: 100-120 GSM
• Brochures: 130-170 GSM
• Photographs: 200+ GSM
• Business Cards: 250-400 GSM

Best GSM for Business Cards

Business cards require a heavy feel to convey professionalism and quality. Therefore, the best GSM for business cards usually ranges from 250 GSM to 400 GSM. This ensures that the cards are durable and leave a lasting impression.

How Does GSM Affect Print Quality?

GSM significantly affects print quality. Higher GSM papers tend to produce sharper and more vibrant prints, as they are less prone to ink bleed and show-through. They also provide a smoother surface, resulting in better image reproduction. However, please note that the printer that is being used also plays an equally important role, as higher GSM papers may not be compatible with the printer causing blockages and ink spilling. The same case goes with lower GSM paper, which can curl inside the printer, and cause jams. Therefore, always check your printer’s specifications before printing.

Paperweight vs. GSM: Understanding the Terms Clearly

While GSM is the standard measurement for paper weight, the term "paperweight" is also used. However, "paperweight" can be confusing, as it varies depending on the paper's size and type. GSM provides a more precise and standardized unit measurement.

Frequently Asked Questions

Is higher GSM paper better?

Higher GSM paper is not necessarily "better" in all situations. It is better for applications that require durability, a premium feel, and high-quality prints. However, for everyday printing, lower GSM paper is more cost-effective and suitable. The "best" GSM depends on the specific purpose.

What is the difference between 70 GSM and 100 GSM?

The primary difference between 70 GSM and 100 GSM paper is weight and thickness. 100 GSM paper is heavier and slightly thicker, providing a more substantial feel. It is also more durable and less prone to wrinkling. 70 GSM is thinner and lighter, suitable for everyday printing needs where cost is a primary concern.

How does GSM affect the cost of paper?

Generally, higher GSM paper is more expensive than lower GSM paper. This is because higher GSM paper requires more raw materials and a more complex manufacturing process.

Can I use any printer for high GSM paper?

Not all printers are designed to handle high GSM paper. Check your printer's specifications before printing. Using paper that is too thick for your printer can lead to paper jams and damage to the printer.

How to choose the right GSM for my project?

To choose the right GSM for your project, consider the following:

• The intended use of the paper.
• The desired feel and durability.
• The print quality requirements.
• Your budget.

By understanding these factors, you can select the appropriate GSM to achieve the best results.