Single Leg vs. Twin Leg Lanyards

If you’re like most people, you probably don’t give much thought to the type of lanyard you’re wearing. But did you know that there’s actually a big difference between single-leg and twin-leg lanyards? Whether you’re a safety professional or just someone who occasionally works at height, read on to learn more about single-leg vs. twin-leg lanyards!

What are single-leg and twin-leg lanyards?

There are two main types of lanyards – single leg and twin leg. Single-leg lanyards have one line extending from the main snap hook, while twin-leg lanyards have two.

Single-leg lanyards are made from a single piece of material, while twin-leg lanyards are made from two pieces of material that are joined together in the middle.

How do single-leg and twin-leg lanyards differ?

The first and most obvious difference between single-leg and twin-leg lanyards is the number of legs or lines that make up the lanyard. A single-leg lanyard has one line that attaches to an anchor point, while a twin-leg lanyard has two lines that each attach to an anchor point.

Another difference between the two types of lanyards is the way they are worn. A single-leg lanyard is typically worn around the neck, while a twin-leg lanyard is worn around the waist. This can be helpful if you need to keep your hands free for tasks such as climbing or working with machinery.

Advantages and disadvantages of single-leg lanyards

Both types have their own advantages and disadvantages, so it’s important to choose the right one for your needs. Single-leg lanyards are typically cheaper and easier to produce than twin-leg lanyards.

Single-leg lanyards are more versatile because they can be used with a variety of anchoring points. They’re also more comfortable to wear because there’s only one around your neck. Single-leg lanyards are also usually lighter and more comfortable to wear since there’s less material. However, single-leg lanyards can be more difficult to adjust and can sometimes slip off more easily.

However, single-leg lanyards don’t offer as much protection as twin-leg lanyards because if you fall, you will only be attached to one anchoring point. But twin-leg lanyards are less versatile than single-leg lanyards because they can only be used with certain anchoring points.

Twin-leg lanyards are generally considered to be safer than single-leg lanyards. This is because there are two lines attaching you to an anchor point, so if one line breaks, you will still be securely attached. However, twin-leg lanyards are more expensive and take more time to produce, but they offer a few advantages over single-leg lanyards.

They’re more adjustable and less likely to slip off, making them a good choice for people who need a more secure fit. Twin leg lanyards can also be more comfortable for people who need to wear them for long periods of time since the extra support can help distribute the weight more evenly.

Advantages and disadvantages of twin leg lanyards

While twin-leg lanyards offer a variety of advantages, there are also some potential disadvantages to consider. Here is a summary of the pros and cons:


  • Increased safety: Wearing two lanyards provides an extra measure of safety in case one lanyard fails.
  • Greater freedom of movement: Twin-leg lanyards allow you to move more freely than a single-leg lanyard, which can be helpful when working in tight spaces or over obstacles.
  • Can be used with a variety of devices: Twin leg lanyards can be used with a variety of fall protection devices, including full-body harnesses and positioning devices.


  • More expensive: Twin-leg lanyards typically cost more than single-leg lanyards.
  • More difficult to use: Twin-leg lanyards can be more difficult to use than single-leg lanyards, making them less suitable for applications where user error could be a factor.

When to use a single-leg lanyard

While a twin-leg lanyard is the most common type of lanyard, there are certain applications where a single-leg lanyard would be the preferred choice. If you need added mobility or working at heights where a fall could occur from multiple directions, a single-leg lanyard is the better option. You can also use a single-leg lanyard in conjunction with other safety devices, such as a positioning device, to create a complete system.

When to use a twin leg lanyard

A twin-leg lanyard is two lanyards joined together at the webbing attachment point and is typically used when there are two anchor points that are close together. This configuration allows the user to move more freely and easily between the two anchor points. A twin-leg lanyard can give the wearer added assurance they will be supported by more than one strap in the event of a fall as well.

How to choose the right lanyard for the job

It’s important to choose the right lanyard for the job, as using the wrong type of lanyard could result in serious injury.

Single leg lanyards are typically made from a single piece of webbing and are attached to the user’s belt at one end, and to the anchor point at the other. This type of lanyard is typically used for lighter-duty applications, such as Concrete formwork or pipe fitting.

Twin-leg lanyards, on the other hand, are made from two pieces of webbing sewn together in the middle. They are attached to the user’s belt at both ends and provide increased stability and safety in heavier-duty applications, such as window washing or construction work.

Tips for using lanyards safely

If you’re thinking about using lanyards for safety purposes, there are a few things you should keep in mind.

  • First, be sure to choose the right type of lanyard for your needs. Single-leg lanyards are typically used for light-duty applications, while twin-leg lanyards are designed for more heavy-duty tasks.
  • Second, be sure to use your lanyard correctly. Always follow the manufacturer’s instructions, and don’t forget to inspect your lanyard regularly for wear and tear. If you notice any damage, replace your lanyard immediately.
  • Finally, always take care when attaching or removing your lanyard. Avoid sudden jerking motions, and never try to remove a lanyard while it’s under tension.

By following these simple tips, you can help ensure that you use your lanyard safely and effectively.

Frequently asked questions about lanyards

Q: What is the difference between a single-leg and a twin-leg lanyard?

A: A single-leg lanyard has one fixing point and is used to connect the user to a single anchor point. A twin-leg lanyard has two fixing points and is used to connect the user to two anchor points, providing fall protection in the event that one anchor point should fail.

Q: How do I choose the right lanyard for my needs?

A: The type of lanyard you choose will depend on your specific requirements. Factors to consider include the type of environment you will be using it in, the weight of the user, and the level of fall protection required.

Q: What are some common uses for lanyards?

A: Lanyards are commonly used in construction, Oil & Gas, telecommunications, and utility industries. They are also popular among rock climbers and mountaineers.

In Closing

Most people don’t think much about the types of lanyards available for safety purposes. In fact, lanyards are commonly used in construction and other industrial settings to help prevent worker injury. Which lanyard you choose depends on a range of factors, but the most important thing is inspecting it and wearing it properly.

NEXT UP: Types of Shock-Absorbing Lanyards

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Rebecca Ross
About Rebecca Ross

Rebecca Ross an Environmental, Health and Safety (EHS) consultant who runs her own occupational safety consultancy. She focuses on hazardous materials, warehouse safety, fire safety, lab safety, fall protection, head protection and other workplace safety topics. Learn more about Rebecca here or connect with her on Twitter | LinkedIn | Medium