Block dimensions:12″HIGH X 17″LONG X 4″THICK
Blocks
Concrete block that weighs one tonne.
The bigger thicker blocks up from the 4"
Chips
3/8" Chips. Very small stones
Gravel
Clause 804
A much bigger block with a cavity/hole going through the center.
Quarry Products
A tonne bag of sand.
Plastering sand
Screenings-Very dusty gravel
Regular sized blocks used for most building jobs.
Regular 4" block with a 30 degree offset.