We generally have four different sands in stock: Fill Sand, Plaster Sand, Felton Sand, and Playground Sand. Fill Sand, also known as PG&E Sand, is very fine and compacts easily. Plaster Sand is a similar grey color, but is rougher and contains larger granules. Plaster Sand is also commonly used underneath flagstone and pavers. Felton Sand is our finest sand, and is yellow in color. It is often used in-between flagstone, pavers, and brick. Playground Sand, also known as industrial sand, is made up of coarse grains, and contains no dust particles. Playground sand is ideal for playgrounds and sandboxes.