Blocks
Regular 4" block with a 30 degree offset.
Bags
Small empty heavy duty sand bag.
An empty small bag.
Regular sized blocks used for most building jobs.
Concrete block that weighs one tonne.
Regular 4" block with a 90 degree offset.
Chips
3/8" Chips. Very small stones
Quarry Products
2" clean medium sized stone
A tonne bag of sand.
Gravel
Clause 804