3/4″ stone (also known as CA7) is ideal as bedding stone for underground pipe as well as concrete flatwork. Bedding stone can also help prevent cracking in concrete due to the shifting ground and helps you create a more level surface by ensuring pavers or natural stone that you often see in landscape retaining walls, walkways, or patios and concrete slabs lay evenly. In fact, it is called bedding stone because it cushions your pavers and slabs from the ground beneath them.