$220.00 Sold online by the cubic yard. Bags are available at stores. Expanded Shale 3/8" (cubic yard only) quantity Add to cart SKU: 3012-01 Category: Sands & Aggregates Description Description Expanded shale is blended with existing soils to promote drainage, improve soil conditions, and create a lightweight soil for rooftop mixes. Related products Mason Sand (cubic yard only) $49.00 Add to cart Decomposed Granite 5/8″ (cubic yard only) $110.00 Add to cart