Is KlipTread compliant with Australian Standard AS 1657?

Yes. The KlipTread cantilevered walkway and handrail system is meticulously engineered to comply with Australian Standard AS 1657:2018. It meets all stringent requirements for fixed platforms, walkways, and edge protection, ensuring optimal fall safety for bridge inspectors and maintenance staff.

Is KlipTread an NZS 1657 compliant walkway system?

Yes. For New Zealand specifiers and engineers, KlipTread fully complies with NZS 1657:1992 (and the harmonized AS/NZS 1657:2018). Moddex supplies complete Producer Statement (PS1) documents with the system to ensure a streamlined building consent and structural certification process.

Is KlipTread approved for use on the KiwiRail network?

Absolutely. KlipTread was specially designed and developed in partnership with KiwiRail to overcome the safety and downtime challenges of traditional walkway installations. It is formally Type Approved (Certificate Number B-TA-1001), meaning it is pre-certified and approved for immediate use across the entire KiwiRail network.

Does KlipTread require structural drilling or welding to install?

No. KlipTread is a 100% weld-free, modular clip-on system. It attaches securely to existing I-beam bridge structures without the need for extensive drilling, hot-works permits, or specialized welding trades. This protects the structural integrity of the bridge and highly accelerates the installation process.

Can KlipTread be retrofitted to existing, non-compliant bridges?

Yes. KlipTread is specifically manufactured to seamlessly retrofit onto existing bridge infrastructure where older walkways have deteriorated or no longer meet current safety standards. It provides a fast, pre-engineered upgrade path to bring older road, rail, or industrial bridges back into full compliance.

Do I need scaffolding to install the KlipTread system?

No. One of the major advantages of the KlipTread system is its top-down installation methodology. Because the cantilever arm and walkway can be safely installed from above the bridge structure, it completely removes the heavy costs, delays, and severe risks associated with erecting scaffolding over water or deep drops.

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KlipTread™ - Clip-On Walkway & Handrail System

Clip-On Walkway & Handrail System

Kliptread™ Clip-On Walkway & Handrail SystemClip-On Walkway & Handrail System

Name: KlipTread™
Brand: Moddex
Availability: InStock

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Patent Pending 767353

KlipTread™ is a proprietary, pre-engineered clip-on walkway and handrail system designed to seamlessly clip onto existing I-beam bridge infrastructure in hours.

Upgrading or maintaining walkways on existing bridge infrastructure is often fraught with complex engineering, long installation times, and significant safety hazards. The Moddex KlipTread™ System solves these challenges entirely.

Because the cantilevered system simply clips directly onto the bridge structure – completely separate from rail sleepers and tracks – it provides a safe access platform before, during, and after track maintenance. You can easily remove and replace sleepers without ever needing to dismantle the walkway.

Supplied as a modular kitset in manageable 6.5m sections, KlipTread™ completely eliminates the need for site welding, hot works permits, or structural drilling. In addition, it is strategically designed to be installed from above the structure, instantly removing the need for costly scaffolding and drastically cutting project downtime from weeks to hours.

KEY FEATURES
OF KLIPTREAD™

Clip-on installation with no drilling or welding
Attaches directly to bridge structure, eliminating hot works, structural modification and complex installation processes.
Prefabricated flat-pack kit for rapid installation
Supplied in modular sections for efficient transport and installation, reducing time on site and speeding up to hours not days.
Installation from above the structure
Designed to be installed from above the structure, it eliminates need for scaffolding, site drilling, or hot works.
Guaranteed Regulatory Compliance
Fully pre-engineered, type-approved system supplied with compliance certification with AS/NZS 1657 standards for immediate, foolproof compliance sign-off.
50-year design life
Engineered for long-term durability across infrastructure environments.

APPLICATIONS & USE CASES OF KLIPTREAD

Rail bridges

Maintenance access walkways

Industrial and transport infrastructure

Configurations

View materials:

KT30

AS/NZS 1657:2018 compliant clip-on Cantilever arm with a walkway and a top, mid & bottom rail.

View Applications Download Spec PDF

KT30

AS/NZS 1657:2018 compliant clip-on Cantilever arm with a walkway and a top, mid & bottom rail.

Download Spec

KT30

Compliance

The Moddex KlipTread™ Clip-On Walkway and Handrail 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

NOTE: PS1 documentation available upon request.

Specifications

All relevant technical documents, product specifications and compliance information for Kliptread™ pre-engineered modular clip on walkway and handrail systems are available below. These resources support design development, product specification and accessibility compliance requirements across Australia and New Zealand.

ULTIMATE COMPLIANCE GUIDE PRODUCT BROCHURE

Additional Info

KlipTread™ is a proprietary Moddex system currently used exclusively throughout New Zealand, where it has supported a range of rail infrastructure upgrade projects with KiwiRail, alongside whom the system was originally developed.

View some of the New Zealand bridge infrastructure projects utilising our KlipTread™ product:

Bridge 22 Project
Bridge 127 Project
Bridge 12 Project

Find out more information about KlipTread here.

Trials of the KlipTread™ system are currently underway in Victoria, Australia.

FREQUENTLY ASKED QUESTIONSABOUT KLIPTREAD™

Common questions about Kliptread™ clip-on platform and handrail systems, including compliance, NCC and NZBC requirements and considerations for specifying modular walkways, platforms and handrails on bridge infrastructure.

Is KlipTread compliant with Australian Standard AS 1657?

Yes. The KlipTread cantilevered walkway and handrail system is meticulously engineered to comply with Australian Standard AS 1657:2018. It meets all stringent requirements for fixed platforms, walkways, and edge protection, ensuring optimal fall safety for bridge inspectors and maintenance staff.
Is KlipTread an NZS 1657 compliant walkway system?

Yes. For New Zealand specifiers and engineers, KlipTread fully complies with NZS 1657:1992 (and the harmonized AS/NZS 1657:2018). Moddex supplies complete Producer Statement (PS1) documents with the system to ensure a streamlined building consent and structural certification process.
Is KlipTread approved for use on the KiwiRail network?

Absolutely. KlipTread was specially designed and developed in partnership with KiwiRail to overcome the safety and downtime challenges of traditional walkway installations. It is formally Type Approved (Certificate Number B-TA-1001), meaning it is pre-certified and approved for immediate use across the entire KiwiRail network.
Does KlipTread require structural drilling or welding to install?

No. KlipTread is a 100% weld-free, modular clip-on system. It attaches securely to existing I-beam bridge structures without the need for extensive drilling, hot-works permits, or specialized welding trades. This protects the structural integrity of the bridge and highly accelerates the installation process.
Can KlipTread be retrofitted to existing, non-compliant bridges?

Yes. KlipTread is specifically manufactured to seamlessly retrofit onto existing bridge infrastructure where older walkways have deteriorated or no longer meet current safety standards. It provides a fast, pre-engineered upgrade path to bring older road, rail, or industrial bridges back into full compliance.
Do I need scaffolding to install the KlipTread system?

No. One of the major advantages of the KlipTread system is its top-down installation methodology. Because the cantilever arm and walkway can be safely installed from above the bridge structure, it completely removes the heavy costs, delays, and severe risks associated with erecting scaffolding over water or deep drops.

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(AU) 1800 663 339 (NZ) 0800 663 339

Kliptread™ Clip-On Walkway & Handrail SystemClip-On Walkway & Handrail System

KEY FEATURES
OF KLIPTREAD™