Block dimensions:12″HIGH X 17″LONG X 4″THICK
Blocks
A much bigger block with a cavity/hole going through the center.
Gravel
Screenings-Very dusty gravel
The bigger thicker blocks up from the 4"
Chips
3/8" Chips. Very small stones
Regular 4" block with a 30 degree offset.
Clause 804
Quarry Products
Plastering sand
Aggregate mix