Fabric Weights
Fabric Weight Basic Summary:
- Very light: 0-4oz.
- Light: 4-7oz.
- Medium: 7-12oz.
- Heavy: 12-14oz.
- Very heavy: 14oz+
What is OZ Fabric Weight? (oz/y²)
In the context of material weight, oz stands for ‘ounces per square yard’.
As an example, if a material of size four yards squared weighs 20 oz, then the ‘fabric weight’ will be 5 oz (20/4).
| Classification | Weight | Uses |
| Very light | 2.5 oz+ | Jacket linings, undergarments and lightweight performance wear. |
| Light | 4 oz+ | Regular and lightweight shirts. |
| Light | 6 oz+ | Thick or heavyweight t-shirts. |
| Medium | 7 oz+ | Light and medium weight sweatshirts, light suits and blazers. |
| Medium | 9 oz+ | Heavy weight sweatshirts |
| Heavy | 12 oz+ | Heavier cloths, such as flannel and denim jackets. |
| Very Heavy | 14 oz+ | Extra thick sweatshirts, woven outerwear, or sports coats made of thick material. |
Fabric Weight Breakdown
2.5 - 4oz (Very Lightweight)
Cloths in this category are very light, and are usually very breathable, making them great for summer.
4 – 7oz (Lightweight)
Clothing made of lightweight material can potentially be worn all year round. For example, a t-shirt can be worn during the winter, given correct layering.
7 – 9oz (Medium)
Slightly heavier/lower-midweight. Includes ‘linen’ as a material, which is known for producing light weight variants of traditionally heavy clothing, such as suits and blazers.
9 – 11 oz (Medium)
Transitional garments that are appropriate to wear in the Spring and Fall. Could potentially be worn year round, though it will be on the lighter side.
11oz – 12oz (Heavy)
Can be worn all year round. Heavier or lighter fabrics may be better for certain seasons, but 11-12oz is usually safe and appropriate for general wear.
12oz – 14oz (Heavy)
Fabrics that weigh between 12-14 ounces are considered ‘heavier fabrics’, and are most suitable in the winter. Usually heavy enough to insulate, but still maintain maneuverability without being too bulky.
14oz+ (Very Heavy)
The heaviest category of cloth weight which is generally used for outerwear, such as overcoats, or upholstery. It is insulating, and generally doesn’t let in a lot of air.