Bags
Small empty heavy duty sand bag.
Blocks
Quarry Products
A tonne bag of sand.
Regular 4" block with a 90 degree offset.
Concrete block that weighs one tonne.
2" clean medium sized stone
4" clean large stone
Regular 4" block with a 30 degree offset.
Plastering sand
Gravel
Screenings-Very dusty gravel
Clause 804