An empty small bag.
An empty small bag which can be filled with 4 stone weight of sand, gravel or chips. Bought on its own as an empty bag.
Chips
3/8" Chips. Very small stones
Blocks
The bigger thicker blocks up from the 4"
Quarry Products
A tonne bag of sand.
Plastering sand
Regular sized blocks used for most building jobs.
Gravel
Screenings-Very dusty gravel
A much bigger block with a cavity/hole going through the center.
Concrete block that weighs one tonne.
Drainage stone-small smooth rounded stone
Clause 804