An empty big bag.
An empty big bag which can hold a tonne of sand, gravel or chips. Bought on its own as an empty bag.
Blocks
Concrete block that weighs one tonne.
Regular sized blocks used for most building jobs.
The bigger thicker blocks up from the 4"
Quarry Products
4" clean large stone
Plastering sand
Bags
An empty small bag.
Regular 4" block with a 30 degree offset.
Chips
3/8" Chips. Very small stones
Gravel
Aggregate mix
2" clean medium sized stone
Clause 804