Block dimensions:12″HIGH X 17″LONG X 4″THICK
Blocks
A much bigger block with a cavity/hole going through the center.
Gravel
Screenings-Very dusty gravel
Quarry Products
Drainage stone-small smooth rounded stone
The bigger thicker blocks up from the 4"
2" clean medium sized stone
Regular 4" block with a 30 degree offset.
Regular 4" block with a 90 degree offset.
A tonne bag of sand.
Aggregate mix
Plastering sand
Bags
Small empty heavy duty sand bag.