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Trojan QLD Pty Ltd is a dynamic South East Queensland Privately Owned company that specialize in the Manufacturing and Installation of Concrete Sleeper Retaining Walls, Tilt Panel Options, Concrete Block Works, Sandstone Boulder Retaining Walls, Rock Retaining Walls, Earth Retaining Structures, Core Filled Retaining Walls, Fencing and Acoustic Fencing. We have been trading in South East Queensland for over 25 years and for the past 17 years have specialized in the construction of retaining walls and are now in close association with Trojan Concrete Products, Trading as Trojan Concrete Products, a quality manufacturer.

Incorporating a significant founding history and presence in South East Queensland; Trojan Group have recently undertaken steps to diversify and ensure that we remain an Industry Leader. Focusing on Cost Effectiveness, Accurate and Effective Engineering, Product Development and Innovation; our strategic procurement of Key In-House Personnel and capture of good management practices and procedures are fundamental in our expansion plans moving into 2020. With NATA Accreditation and Certification being applied to our upcoming Concrete Batching Plant and Manufacturing Facility under construction at Murarrie; the future holds Environmentally Friendly & Sustainable solutions to accompany our already superior products.


Trojan Concrete Products manufactures all concrete sleepers with a unique & internally developed specified mixed design providing 40mpa minimum strength concrete by time of installation ensuring that the strength and overall quality of our product is not subject to uncontrolled curing methods or shrinkage cracking. All Trojan concrete sleepers have a minimum of two (2) 12mm reinforcing bars installed to a maximum of 800mm in any wall height and three (3) 12mm reinforcing bars installed for the remainder of applications. A vigorous auditing and quality assurance program are paramount to our continued efforts to improve and maintain our high standards of Concrete Sleepers. This testing regiment includes 3 Cylinder Crack Tests administered at 30m3 intervals and reportable at 12hrs, 7 days, 14 days & 28 days that ensure integrity of our concrete is absolute. Additional to concrete testing Trojan has dated manufacture & marking of each sleeper which includes registered KPI tracking that can resource every element of the production date and life of the individual sleeper.


Trojan Steel Posts and Products are sourced & imported internally and conform to ALL Australian Standards and Trojan’s engineering and quality requirements of a minimum 350 Grade steel. Our minimum Steel Post prescription on any commercial project is 100UCH14.8 kilograms per meter; this ensures strength and provides optimal coverage of our sleeper ends and promotes the Steel Reinforcing in the Concrete Sleeper is within the UCH channel.


Uniquely our Engineering incorporates Trojan’s 25 years of construction & installation knowledge with a proven track record of wall integrity and general conformance of Australian Standards. Our products and internally driven design manuals are industry leading and qualifies our product as the strongest on the market whilst maintaining cost effectiveness. Trojan offer up to and inclusive of 25kpa Wall designs for our Concrete Sleeper Retaining Walls and can provide specific Design and Engineering consultation for any project requirements.


Below are just a few of our specialties:

  • Free Measure and Quotes
  • Provision of Engineer Drawings and Certification
  • Assistance with Council Approvals
  • We own and operate our own Excavators, Bobcats and Rock Drillers
  • We own and operate our own trucks for delivery of products to site
  • We are QBCC Licensed Retaining Wall Builders
  • Engineered to Australian Standards
  • Our walls are Engineered for a design life of 60 years
  • Protect your home from termites
  • Improve the value of your home
  • Friendly mannerisms, professional staff members. Our staff are full trained from the Earthworks stage to the final installation of your work

Commercial and Residential Works as shown below:

  • Concrete Sleeper Retaining Walls
  • Tilt Panel Options
  • Concrete Masonry Block Works
  • Sandstone Boulder Retaining Walls
  •  Rock Retaining Walls
  • Earth Retaining Structures
  • Core Filled Retaining Walls
  • Fencing
  • Acoustic Fencing

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