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.
Blocks
Concrete block that weighs one tonne.
Gravel
Screenings-Very dusty gravel
Bags
An empty big bag.
Quarry Products
A tonne bag of sand.
Aggregate mix
The bigger thicker blocks up from the 4"
Regular 4" block with a 30 degree offset.
Chips
Plastering sand
Clause 804