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