In Australia, the price of concrete per cubic metre ranges from $150 to $300. Concrete prices vary from $50 to $150 per square metre. The type of concrete you require and your location will all affect the exact pricing of the material. Although hourly wages for concreters vary widely around the nation, the average wage is about $68. For spray-on concrete, costs range from $50 to $75 per square metre. A square metre of plain concrete costs between $60 and $85, and coloured concrete costs between $100 and $150. Costs range from $100 to $150 per square metre for a decorative stencil finish or exposed aggregate.