Concrete block that weighs one tonne.
Concrete block that weighs one tonne with many heavy duty uses.
Bags
Small empty heavy duty sand bag.
Blocks
A much bigger block with a cavity/hole going through the center.
Gravel
Aggregate mix
Quarry Products
Plastering sand
Drainage stone-small smooth rounded stone
Regular 4" block with a 90 degree offset.
An empty small bag.
Clause 804
The bigger thicker blocks up from the 4"
Regular sized blocks used for most building jobs.