A snap button (also called a snap fastener, press stud, or popper) is a common type of button used in clothing, bags, and other products. A snap button consists of four parts: the cap, socket, stud, and post. If you are looking for the right button size for your clothing, it's important to understand the common sizes of buttons. Below is a detailed introduction to snap button sizes and their common applications.
Snap button size chart
|
Snap Button Size (mm) |
Ligne (L) |
Common Applications |
|
8 mm |
12L |
Baby garments, lightweight fabrics |
|
10 mm |
16L |
Shirts, thobes, light apparel |
|
12.5 mm |
20L |
Denim shirts, casual wear |
|
15 mm |
24L |
Jeans, jackets, workwear |
|
17 mm |
27L |
Heavy garments, outerwear |
|
20 mm |
32L |
Coats, bags, leather goods |
|
21–24 mm |
34L–38L |
Industrial, heavy-duty use |
Snap Button Socket Size Chart
Other types of snap button sizes
Prong Snap Buttons: Size Range & Use Cases
|
Prong Snap Button Size (mm / Ligne) |
Recommended Applications |
Notes / Considerations |
|
10 mm (16L) |
Lightweight shirts, thobes, casual tops |
Smallest prong snaps; suitable for thin fabrics; easy installation |
|
12.5 mm (20L) |
Denim shirts, medium-weight shirts, casual jackets |
Most commonly used size; balances strength and aesthetics |
|
15 mm (24L) |
Jeans, workwear shirts, light jackets |
Provides stronger holding force; ideal for medium to thick fabrics |
|
17 mm (27L) |
Heavy jackets, coats, leather garments |
Larger size for heavy fabrics; improves snap stability and durability |
|
20 mm (32L) |
Bags, backpacks, outerwear, industrial garments |
Maximum common size; used for thick materials and high-stress applications |
Ring Snap Buttons - Size & Applications
|
Ring Snap Button Size (mm / Ligne) |
Recommended Applications |
Notes / Considerations |
|
8 mm (12L) |
Baby garments, lightweight shirts, decorative plackets |
Smallest ring snaps; easy on delicate fabrics; limited holding strength |
|
10 mm (16L) |
Light shirts, thobes, blouses |
Balanced for aesthetics and light-duty fastening |
|
12.5 mm (20L) |
Medium shirts, casual tops, light jackets |
Suitable for thin to medium-weight fabrics; decorative and functional |
|
15 mm (24L) |
Light jackets, casual outerwear |
Max practical size for ring snaps; oversized may weaken ring structure or reduce holding force |
Sew-On Snap Buttons - Size & Applications
|
Sew-On Snap Button Size (mm / Ligne) |
Recommended Applications |
Notes / Considerations |
|
8 mm (12L) |
Baby bodysuits, infant clothing |
Small size for delicate fabrics; easy to hand-sew; safe for children |
|
10 mm (16L) |
Children's shirts, lightweight sleepwear |
Balanced for usability and fabric strength; hand-sewing friendly |
|
12.5 mm (20L) |
Decorative plackets, lightweight jackets, vests |
Larger sew-on snaps may be decorative or functional; ensure fabric can handle stitching stress |
When choosing snap button sizes, consider the application scenario and fabric thickness. Understanding common sizes and applications will help you make a quick decision.
Looking for customizable, high-quality snap buttons? We offer custom sizes, colors, and logos to create personalized snap buttons for you. Contact us today to get samples and discuss customization options.
