Block dimensions:12″HIGH X 17″LONG X 4″THICK
Blocks
A much bigger block with a cavity/hole going through the center.
Regular sized blocks used for most building jobs.
Quarry Products
Drainage stone-small smooth rounded stone
Regular 4" block with a 90 degree offset.
4" clean large stone
Plastering sand
Gravel
Clause 804
The bigger thicker blocks up from the 4"
Regular 4" block with a 30 degree offset.
Chips
Concrete block that weighs one tonne.