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