Blocks
Concrete block that weighs one tonne.
The bigger thicker blocks up from the 4"
Regular sized blocks used for most building jobs.
Bags
Small empty heavy duty sand bag.
An empty small bag.
An empty big bag.
Quarry Products
Drainage stone-small smooth rounded stone
Regular 4" block with a 30 degree offset.
A tonne bag of sand.
Chips
Gravel
Clause 804