Sentryline – M® Wire Rope Barrier

The Sentryline – M® Wire Rope Barrier is a high-tension cable barrier, with an accompanying terminal end, designed and tested for full compliance with MASH (2016) levels TL-3 and TL-4.

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Sentryline Wire Rope Barrier


The Sentryline – M® Wire Rope Barrier allows an impacting vehicle to be re-directed in a safe and predictable manner under MASH 2016 impact conditions.

Tested to MASH (2016) TL-3 and TL-4 by Holmes Solutions and approved by Austroads Safety Barrier Assessment Panel (ASBAP) with two post options available.


  • Easily installed with minimal maintenance required
  • Quick to repair after a collision
  • Can be installed in median and road side applications
  • Cables can be installed in any order – unlike interwoven or stacked cable systems
  • Cables can be removed and re-attached individually
  • Features non releasing terminal ends
  • Designed in New Zealand – Patent pending (WO 2020/128929)

    Post Options
  • Bolt Down Sentryline – M® post option available – used on concrete ground beam where services or ground conditions do not allow use of  standard concrete post footings
  • Sentryline – M® Driven Sockets – an alternative to the typical concrete post footing where a steel sleeve is driven inground


  • Cable: 19 mm 3 x 7 strand, pre-stretched by 35%
  • Cable heights (to the centre) as per drawing FX748
  • Typically Line Post footing piles are 300 mm diameter x 750 mm (0.05 m3)
  • Length of Need is met at Transition Line Post 5 
  • Tensioned to 25kN at 20°C (Tension may vary depending on air temperature at time of installation, see chart in Product and Installation Manual*)
  • Max flare: 300 mm over 10 m of the terminal end (offset from tangent)
  • All components are hot dip galvanised (posts are all hot dip galvanised with an optional powder coated finish)
  • Concrete: 25MPa

Standards and Approvals

  • AS/NZS 3845 – Part 1 Products
  • MASH (2016) TL-3 & TL-4 tested by Holmes Solutions
  • Approved by Austroads Safety Barrier Assessment Panel (ASBAP)

Merger of Australian Construction Products and Safe Direction

We are delighted to announce the merger of Safe Direction Pty Ltd and Australian Construction Products Pty Ltd (ACP).
On 1 May 2023 Jaybro, Australia’s leading supplier to the civil construction and infrastructure sector, and owner of ACP, purchased 100% of the share capital of Safe Direction. Under Jaybro’s ownership the two businesses will be merged to form Australia’s preeminent company manufacturing and supplying vehicle barrier systems.

A compelling motivation for the merger is the value created for our customers from combining the collective resources and knowledge of the two companies. Notably there will be significant broadening of the product range and enhancement to distribution reach and capacity. There will be transitionary steps as the two businesses assemble under the one entity, Safe Direction. Part of this transition includes the consolidation of the products and services offered by the merged business into a single web domain

We trust that this merger will provide increased value to you and we look forward to the opportunity to be of assistance.