As Australia's largest concrete sleeper manufacturer, we offer a one stop shop experience for retaining wall needs to suit re ... tail customers, tradesmen and resellers. QPro’s range of concrete sleepers are manufactured at our Brendale facility on the Northside of Brisbane. We utilise the best locally sourced raw materials and unique state of the art manufacturing methods. The total manufacture process is controlled in house from batching our own concrete through to individually filling each mould to precise tolerance which ensures every QPro sleeper is made with love and care within a quality controlled manufacturing environment. QPro Concrete Sleepers have been designed and engineered for top quality, structural strength and incomparable style! We pride ourselves on the quality of our products and the outstanding customer service our team provides. Backed by a 30 year design life, you can be confident in the products we supply. read more