GSM Fabric Weight Guide: What GSM Means for Your Clothing Brand

GSM Fabric Weight Guide: Everything You Need to Know

When sourcing custom clothing, you'll constantly encounter the term 'GSM'. Understanding GSM is fundamental to specifying quality clothing and having productive conversations with manufacturers.

What is GSM?

GSM stands for Grams per Square Meter. It measures how much one square meter of a fabric weighs in grams. It is the universal Standard for measuring fabric weight and thickness.

**Why GSM matters:**

How to Measure GSM

Manufacturers use a GSM cutter. A circular device that cuts a precise 100 cm² sample and which is then weighed on a precision scale and multiplied by 100.

You can request GSM test reports from manufacturers. Reputable factories test every fabric lot before cutting.

GSM Guide by Garment Type

T-Shirts

Hoodies & Sweatshirts

Leggings & Sportswear

Performance Jerseys

Common GSM Misrepresentations

Some manufacturers report inflated GSM. Ways to protect yourself:

1. Request a lab-tested GSM report with each production run

2. Order samples and conduct a basic hand-feel comparison

3. Send samples to a third-party testing lab (Intertek, SGS, Bureau Veritas)

4. Specify GSM tolerance in your purchase order (e.g., 320 GSM ±10 GSM)

GSM and Price Relationship

For the same fabric type and composition:

Specifying GSM in Your Tech Pack

Always include GSM in your fabric specification:

❌ 'Heavy cotton fleece for hoodie'

✅ '320 GSM ±15 GSM, 80% cotton 20% polyester, brushed fleece back, ring-spun yarn'

The more specific your specification, the more accurately the manufacturer can quote and produce to your Standard.

Contact Mughal Apparel to discuss fabric specifications for your collection. We provide fabric GSM test reports for all bulk orders.

Mughal Apparel manufactures from a 50-piece MOQ per style and colour — among the lowest minimums in Pakistan — with refundable pre-production samples and 12–20 day bulk production. Request a quote to get started.