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
Bags
An empty small bag.
Quarry Products
A tonne bag of sand.
Drainage stone-small smooth rounded stone
Gravel
Clause 804
Aggregate mix
Chips
The bigger thicker blocks up from the 4"
Regular 4" block with a 90 degree offset.
An empty big bag.
2" clean medium sized stone