At first glance, all dirt may look the same, but different types of dirt have specific uses in landscaping and building projects, such as fill – structural dirt.
What Is Fill Dirt?
Fill dirt is right below the top layer of earth. That top layer, also known as topsoil, contains organic matter. Fill dirt, on the other hand, is made up of broken rocks, sand and clay. These substantial elements make fill dirt heavier and less likely to shift or move (like topsoil).
To make fill dirt safe for residential and commercial use, suppliers will clean it, removing toxins, chemicals and industrial byproducts. And fill dirt is screened to remove large pieces of rock or debris that would reduce its stability.