Block dimensions:12″HIGH X 17″LONG X 4″THICK
Blocks
Concrete block that weighs one tonne.
Chips
Quarry Products
4" clean large stone
A much bigger block with a cavity/hole going through the center.
A tonne bag of sand.
3/8" Chips. Very small stones
Plastering sand
Drainage stone-small smooth rounded stone
Regular 4" block with a 30 degree offset.