Gravel
Aggregate mix
Bags
Small empty heavy duty sand bag.
Clause 804
Blocks
Regular 4" block with a 30 degree offset.
Chips
Concrete block that weighs one tonne.
Quarry Products
A tonne bag of sand.
4" clean large stone
Regular sized blocks used for most building jobs.
2" clean medium sized stone
Regular 4" block with a 90 degree offset.