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KlipTread — Clip-On Walkway & Handrail System

Moddex proprietary Kliptread™ System ensures safety and compliance on bridges by allowing walkways and handrails to be specified and fitted effortlessly.

KlipTread™ has been specially designed and manufactured for upgrades on existing bridge infrastructure that are no longer compliant due to changes in standards over the years, and/or due to deterioration of walkways under the harsh environment in which they are found.

Key Features
  • Pre-Engineered
  • Flat- Packed Kit
  • Fully Compliant
  • Clip-On
  • Retrofittable
  • Quick and easy to install
Scope of Use

Speed and Ease of Install

  • Specifically designed with KiwiRail to overcome traditional long-winded and difficult walkway installation
  • Cuts downtime to a fraction of previous walkway installs. (Installation completed in hours not days)
  • Reduce and remove the hassles of engineering and design with this pre-engineered and proprietary system, complete with a PS1.
  • Simple installation from above the structure
  • Safety of install – designed to be installed from the top which removes scaffolding costs and downtime
  • No drilling/welding or hot works required on site during install
  • Moddex offers support and training for teams to get a full understanding of install needs.


  • Can be added to a bridge prior to any maintenance and used as an access platform.
  • Installs directly onto bridge structures, separate to the sleepers and tracks. This allows for the sleepers to be removed and replaced without dismantling the walkway or handrail – allowing the bridge to be safe for access prior and during sleeper and track work.
  • Supplied in modular kit-set form including all fixings. Packed in 6.5m sections, making transport to site straight-forward.

Safe, Compliant and Approved

  • Fully compliant retrofittable walkway proprietary system that is pre-engineered and certified
  • Type Approved (Certificate Number B-TA-1001),  meaning if you are on the KiwiRail network, this solution is approved for use
  • Removes risk of falling during inspections and future maintenance
  • Modular, pre – engineered retrofit system means that JSA/SSSP requirements will be consistent and reliable, allowing for a greater margin of safety.
Statement of Building Code Compliance

Moddex KlipTread™ System has been designed to comply with:

  • AS/NZS 1170.1 – TABLE 3.3
  • B1 of the New Zealand Building Code
  • NZS/AS 1657:2018 – CL6.1
  • PS1 documentation available upon request. 
Other Performance Attributes

Patent Pending 767353

CAD and BIM files to download
Data Sheet
Additional Information: Kliptread
Building Product Information Sheet - KlipTread


Moddex are New Zealand and Australia’s leading manufacturer of innovative barrier systems for large-scale infrastructure and non-residential construction projects.

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