Blocks
Quarry Products
4" clean large stone
Gravel
Clause 804
A much bigger block with a cavity/hole going through the center.
Regular 4" block with a 30 degree offset.
Plastering sand
Bags
An empty small bag.
Concrete block that weighs one tonne.
Aggregate mix
Chips
Regular sized blocks used for most building jobs.
Regular 4" block with a 90 degree offset.