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.
Bags
An empty small bag.
Gravel
Clause 804
An empty big bag.
Blocks
Quarry Products
Drainage stone-small smooth rounded stone
Chips
3/8" Chips. Very small stones
Plastering sand
4" clean large stone
Regular 4" block with a 30 degree offset.
Concrete block that weighs one tonne.
A tonne bag of sand.