Block dimensions:12″HIGH X 17″LONG X 4″THICK
Blocks
Quarry Products
4" clean large stone
Gravel
Aggregate mix
Drainage stone-small smooth rounded stone
Bags
Small empty heavy duty sand bag.
An empty big bag.
Chips
2" clean medium sized stone
Regular 4" block with a 90 degree offset.
Concrete block that weighs one tonne.
A much bigger block with a cavity/hole going through the center.