Size Matters... In Paracord!

Paracord 101: Why Size Matters (and How to Pick the Right Cord for Your Project)

If you've ever looked at Paracord options and thought; "Why are there so many...?" you are not alone.

At a glance, all cord kinda looks... well, like cord... But once you start a project, whether it’s a bracelet, a dog leash, camping gear, or a DIY fix around the house, the size, strength, and structure of your cord can make or break the result.

Let’s break it down in a way that actually makes sense.

Why Paracord Is So Popular

Paracord is known for one big reason: strength without bulk. You get serious holding power in a lightweight, flexible cord that’s easy to store, wear, or weave into projects.

Most paracord is:

• Strong for its size

• Flexible and knot-friendly

• Resistant to rot and UV fading

• Useful for everything from crafting to outdoor survival

But not all paracord is created equal, and that’s where size comes in.

Why Size Matters More Than You Think...

Choosing cord is really about answering one question:

What do I need this cord to do?

Thicker cords generally mean:

• Higher strength

• More durability

• Better for load-bearing or safety uses

Thinner cords are better for:

• Detailed weaving

• Lightweight projects

• Small buckles, beads, and hardware

Using cord that’s too thick can make a project stiff and bulky.
Using cord that’s too thin can lead to breakage or failure.

The goal is matching the cord to the job.

A Simple Way to Think About Cord Sizes

Extra-Thin Cords: Detail & Precision

Nano, Micro, 95, 275 Paracord

These cords shine when you need control and detail.

Best for:

• Jewelry and necklaces

• Small bracelets and kids projects

• Decorative knots and accents

• Adding color alongside thicker paracord

They pack easily, weave cleanly, and work with small buckles and clasps. While they aren’t meant for heavy loads, they’re perfect when strength isn’t the priority.

Medium Cords: The Everyday Sweet Spot

325, 425, 550 Paracord

This is where most people land, especially beginners.

Best for:

• Bracelets and keychains

• Lanyards and zipper pulls

• Camping and general utility

• Light gear repairs

550 paracord is the classic for a reason. It balances strength, flexibility, and ease of use, making it a go-to for both crafting and outdoor use. Slightly thinner options like 325 or 425 are great when 550 feels just a bit bulky.

Heavy-Duty Cords: Strength First

650, 750, Paramax, Battle Cord

When strength matters more than flexibility, these cords step up.

Best for:

• Belts and leashes

• Emergency kits

• Towing, hauling, or securing loads

• Outdoor and survival gear

These cords are thicker, stiffer, and incredibly strong. They work best with larger buckles and hardware and are ideal when safety or durability is non-negotiable.

Elastic & Shock Cord: Stretch with Purpose

1/32”, 1/16”, 1/8”, 1/4” Shock & Elastic Cord

Shock cord isn’t about holding still, it’s about controlled stretch.

Best for:

• Bungee straps and cargo nets

• Hammocks and tie-downs

• Bracelets that slip over the hand

• Securing gear that needs flexibility

The thicker the shock cord, the more weight it can handle and the more resistance it provides when stretched.

What About Inner Strands?

Inner strands aren’t just extra material, they’re part of what gives paracord its strength and versatility.

• More strands = higher load capacity

• Strands can be removed and used separately in emergencies

• Coreless cords are softer and better for weaving

If you’re planning for survival use, inner strands matter. If you’re crafting, flexibility might matter more.

Choosing the Right Cord: Quick Tips

If you’re not sure where to start, try this:

• Bracelets & accessories: 325 or 550

• Jewelry & small crafts: Micro, 95, or 275

• Outdoor & camping: 550 or 750

• Heavy-duty projects: Paramax or Battle Cord

• Stretch applications: Shock cord sized to your load

When in doubt, size up for strength or size down for detail.

The Bottom Line

Paracord isn’t one-size-fits-all, and that’s what makes it so useful.

Understanding diameter, strength, and structure helps you choose cord that works with your project, not against it. Whether you’re 12 or 50+, just starting out or deep into DIY life, the right cord makes every project easier, safer, and more enjoyable.

Paracord size DOES matter folks. 

Happy crafting, 

- Marit