Grams per square meter (g/m) is a standard metric used to define the density of paper. It expresses the mass of one square meter of the material. For example, a paper with a designation of 80 g/m weighs 80 grams per square meter. This measurement provides a reliable way to compare the thickness and weight of different paper stocks.
This measurement is crucial for various reasons. It determines the paper’s feel, rigidity, and suitability for different applications. Heavier weights generally signify thicker, more durable paper, ideal for business cards, brochures, or high-quality print materials. Lighter weights are typically used for everyday printing, such as documents and newspapers. Historically, its standardization facilitated consistent communication and quality control within the paper and printing industries.