Australian Standards AS 2870 and AS 3600 must be followed in Australia. Slabs are typically between 85 and 100 mm in thickness. Generally, the pavement between the “kerb-and-gutter” and property boundary must adhere to the local authority’s standards. The prescribed minimum slope or cross-fall for a driveway is typically 1% or 10 mm per meter for appropriate surface drainage. The maximum grade shouldn’t be more than 5% near a footpath or 25% near a property line. Since standards differ based on the construction, refer to this datasheet for more details.
