concrete price per m2
A rough concrete slab will cost much less than a decorative finish. At a rough estimate: 1  Plain concrete can cost between $60 and $85 per square metre, installed. 2  A decorative finish on a driveway starts at about $90 per square metre and goes up to $150 or more. rough concrete slab will cost much less than a decorative finish. At a rough estimate: 1  Plain concrete can cost between $60 and $85 per square metre, installed. 2  A decorative finish on a driveway starts at about $90 per square metre and goes up to $150 or more.