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.
Quarry Products
Drainage stone-small smooth rounded stone
Bags
An empty small bag.
2" clean medium sized stone
Gravel
Clause 804
Regular 4" block with a 90 degree offset.
Small empty heavy duty sand bag.
The bigger thicker blocks up from the 4"
An empty big bag.
Regular sized blocks used for most building jobs.
Chips
3/8" Chips. Very small stones