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Infrastructure buildings

Project data

Location: Pibara, Australia

  • Retaining Walls and Duct Pit Walls approx 250linear meters. Walls ranged in height from 1m –3.6m
  • Duration 8 weeks


  • Restricted access, Limited crane access. Strict deadlines


Monford Group

Benefit to customer

  • With the area subject to high winds, usage of cranes were prohibited, DUO provided no production hours were lost when the crane was on site shut down.
  • Reduced man hours by 50%, this increased production in other areas of the project.
  • Crane-freehanding due to the low weights
Declan White
Managing Director

PERI DUO is an environmentally friendly, lightweight formwork system by means of which we were able to increase our productivity.
It offers numerous advantages: the low weight reduces crane costs and the users’ risk of injury. The easy assembly results in enhanced efficiency and ensures a better construction site result

PERI solution

  • With the help of the eco-friendly lightweight DUO formwork, reinforced concrete walls, strip footings and ground slabs could be monolithically concreted in 1.5 day cycles. 
  • DUO is used for the construction of drive in sump walls, drain walls, base slabs.
  • DUO as edge protection to prevent falls from heights around a suspended slab 5.2m high

PERI systems in use