What Is Fabric Weight (GSM) and How Do You Choose It?
Fabric weight, measured in grams per square meter (GSM), is the most concrete indicator of a fabric's thickness, drape, and durability. As a general rule, fabrics under 100 GSM are light (blouses, lining, light dresses), 100-200 GSM is medium weight (shirts, dresses, home textiles), and above 200 GSM falls into the heavy category (canvas, upholstery, bags).
What does GSM determine?
As GSM increases, fabric becomes less sheer, wrinkles less, and gains durability, but it also drapes less fluidly and feels heavier to the touch. Light-GSM fabrics are airy and flowy but can remain sheer when used as a single layer.
Choosing GSM by product type
For dresses and blouses, 70-135 GSM fabrics give a comfortable drape. For shirting and home textiles (tablecloths, cushion covers), 135-220 GSM is a balanced choice. For bags, upholstery, and heavily used products, fabrics above 220 GSM should be preferred.
GSM should not be confused with fiber content
GSM shows how "heavy" a fabric is, but fiber content (cotton, polyester, viscose, etc.) determines how it behaves: breathability, stretch, drape. Two different fibers at the same GSM can feel completely different, so you should consider both GSM and fiber content together when choosing a fabric.
See Medium-Weight FabricsHow is fabric weight measured?
The standard method is weighing a one-square-meter fabric sample on a precision scale; the result is expressed in grams per square meter (GSM).
Is a higher GSM always higher quality?
No. GSM indicates thickness/weight, not quality; a light shirting fabric can be high quality within its own category. The right GSM is the one that fits the product's intended use.
Can the same pattern be printed at different weights?
Yes, patterns in the DESENIX catalog can be printed on fabrics with different weights and fiber content; fabric selection is a fully independent step.