Clause 804
Clause 804(less dust than screenings) has a whole range of versatile uses. It is sold lose by the tonne.
Blocks
Concrete block that weighs one tonne.
Regular 4" block with a 90 degree offset.
Gravel
Aggregate mix
Screenings-Very dusty gravel
Chips
3/8" Chips. Very small stones
Bags
An empty small bag.
Regular sized blocks used for most building jobs.
An empty big bag.