One of the important characteristics of fabric, i.e. the standard unit of textile measurement of grams per square metre, or gm/2, or GMS. This refers to the weight (or mass) per standard or running meter. You can always feel weight differences by handling the fabric.
The technicalities are another story, however the weight of fabric is worth knowing, as these denote different textile qualities, for what uses they might be particularly suitable, what sewing techniques or choice of thread might be required, etc., and of course it is essential for achieving a certain final look. A heavier weight fabric usually equates with a greater quantity of raw material used in its production, which tends to mean greater durability, and a higher price. A light-weight fabric will be less durable, but more appropriate for creating lighter window dressing styles. Mid-weight fabrics are the most versatile, except for projects requiring great durability or specifically a light-weight fabric . .
Many fabrics have weight added to help them to fall beautifully, especially at the bottoms of seams that might want to pull back. Different types and weights for different purposes, most are fabric covered lead …