Block dimensions:12″HIGH X 17″LONG X 4″THICK
Bags
Small empty heavy duty sand bag.
An empty small bag.
Blocks
Quarry Products
4" clean large stone
Concrete block that weighs one tonne.
Plastering sand
Chips
Gravel
Aggregate mix
Drainage stone-small smooth rounded stone
Regular 4" block with a 90 degree offset.
The bigger thicker blocks up from the 4"