Garment & Textile · Fabric
GSM (Grams per Square Metre)
Universal fabric weight measure — mass per unit area.
Origin
Global
Era
Modern
Also known as
Grammage
Images
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Video
Industrialist View
Shirting 80–140 GSM; T-shirt 140–220 GSM; sweatshirt 280–360 GSM; denim 250–450 GSM (10–15 oz/yd²).
Tailor & Garment-Worker View
Higher GSM = needs heavier needle & longer stitch.
Construction & Use
1 oz/yd² ≈ 33.9 GSM.