Gravel
Clause 804
Blocks
Regular sized blocks used for most building jobs.
Chips
Quarry Products
Drainage stone-small smooth rounded stone
The bigger thicker blocks up from the 4"
A tonne bag of sand.
2" clean medium sized stone
Concrete block that weighs one tonne.
Aggregate mix
3/8" Chips. Very small stones
Regular 4" block with a 90 degree offset.