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"
Quarry Products
2" clean medium sized stone
A tonne bag of sand.
Aggregate mix
Bags
Small empty heavy duty sand bag.
Chips
Regular 4" block with a 30 degree offset.
Regular 4" block with a 90 degree offset.
4" clean large stone