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.
Blocks
The bigger thicker blocks up from the 4"
Quarry Products
2" clean medium sized stone
A tonne bag of sand.
An empty big bag.
Chips
3/8" Chips. Very small stones
Gravel
Aggregate mix
Drainage stone-small smooth rounded stone
Regular 4" block with a 30 degree offset.
Clause 804