Order 3-inch clean stone in Wisconsin for drainage, road base stabilization, retaining walls, and erosion control. This large, angular crushed stone, also called 3″ clear stone or clean aggregate, is washed and free of fines for maximum water flow and long-term durability. Sourced from high-quality Wisconsin limestone and granite quarries, 3″ Clean Stone is ideal for culverts, construction entrances, foundation backfill, and other heavy-duty applications where drainage and stability are essential.