Recycled Type 1
Also known as Hard Core, Crusher Run, 40mm down, 40mm to Dust
Size: 40mm to Dust
Stone: Recycled Various
Application: This is used for any highly trafficked area and is most commonly used as a sub-base for car parks, footpaths, driveways, hard standings and building bases.
If you are looking for a firm sub-base, you will require a type 1. It's also used to get a firm flat surface before laying concrete over the top.