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