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.
Regular 4" block with a 30 degree offset.
Quarry Products
A tonne bag of sand.
2" clean medium sized stone
Plastering sand
Bags
An empty big bag.
Regular 4" block with a 90 degree offset.
Small empty heavy duty sand bag.
4" clean large stone
An empty small bag.
Gravel
Clause 804