A much bigger block with a cavity/hole going through the center.
They are a much bigger block than the 4″ and 6″ blocks with a cavity/hole going through the center of the block. Sold in bales of 20 or by single blocks on their own.
Gravel
Clause 804
Blocks
The bigger thicker blocks up from the 4"
Chips
Quarry Products
A tonne bag of sand.
Plastering sand
3/8" Chips. Very small stones
4" clean large stone
Regular 4" block with a 90 degree offset.
Bags
An empty small bag.
Screenings-Very dusty gravel
Concrete block that weighs one tonne.