Block dimensions:12″HIGH X 17″LONG X 4″THICK
Blocks
The bigger thicker blocks up from the 4"
Quarry Products
4" clean large stone
A tonne bag of sand.
Regular sized blocks used for most building jobs.
Plastering sand
Regular 4" block with a 30 degree offset.
Bags
Small empty heavy duty sand bag.
Drainage stone-small smooth rounded stone
A much bigger block with a cavity/hole going through the center.