Blocks
Concrete block that weighs one tonne.
Bags
Small empty heavy duty sand bag.
The bigger thicker blocks up from the 4"
Chips
An empty small bag.
A much bigger block with a cavity/hole going through the center.
Quarry Products
Plastering sand
2" clean medium sized stone
Drainage stone-small smooth rounded stone
Gravel
Screenings-Very dusty gravel
Clause 804