2
 min read

Fall Arrest Lanyards: Types & Lengths Explained

Published on
December 17, 2025
Contributors
Tom Millar - REAX Business Development Manager
Tom Millar
Business Development Manager
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Fall arrest lanyards come in many types, lengths and materials and understanding these differences is essential for controlling fall distance and reducing risk. We unpack the basics behind lanyard construction, energy absorbers and fall factor, helping you make safer choices when working at height.

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Not all lanyards behave the same when they deploy. Factors such as material, total extended length and whether the legs are elasticated or fixed all influence your total fall distance.

A key principle is understanding fall factor:

  • Fall factor 0 — anchor point above you; safest scenario.
  • Fall factor 1 — lateral movement with moderate fall distance.
  • Fall factor 2 — worst case; anchor point at foot level, creating a fall of up to twice the lanyard length before the stop.

This is why correct anchor points and suitable lanyard selection are critical. Choosing the wrong setup can easily create a fall of four metres or more before the energy absorber even begins to deploy.

Practical Steps / Key Takeaways

Know your lanyard length:
Elasticated legs extend further than many people expect, increasing fall distance.

Understand material differences:
Rope, webbing and elasticated options behave differently during movement and deployment.

Avoid mixing components incorrectly:
Two single-leg lanyards do not equal a twin-leg system. Dual shock absorbers require far more force to deploy.

Use high, strong anchor points:
High attachment = reduced fall factor and shorter total fall distance.

Choose the right configuration for the task:
Single lanyards for static connection; twin lanyards for continuous attachment while moving.

Always check the energy absorber:
This is the critical component that reduces impact force without it, the system cannot protect you.

We regularly see teams using lanyards that aren’t suited to their work positioning or the environment they’re operating in. Small decisions such as anchor height, lanyard type or material can add metres to a fall and significantly increase risk.

Our training focuses on understanding how equipment behaves in real-world conditions. We help teams assess fall distance, choose appropriate systems and avoid common setup errors that compromise safety at height.

Need support choosing the right height safety equipment?

Contact our equipment team today for sales enquiries, expert guidance, practical demonstrations, and affiliated training courses:

📞 - 01253 767775  Opt 2

📨 - equipment@reaxltd.com

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