Drainage stone-small smooth rounded stone
Drainage stone are small smooth rounded stone used for draining water away from places where water is unwanted. It is sold lose by the tonne.
Bags
An empty big bag.
Blocks
Small empty heavy duty sand bag.
Chips
Regular 4" block with a 30 degree offset.
Gravel
Aggregate mix
Screenings-Very dusty gravel
A much bigger block with a cavity/hole going through the center.
An empty small bag.
3/8" Chips. Very small stones
Clause 804