Crushed Gravel. We have four sizes available. The 1/4″ minus & 3/4″ minus, are generally used for walks, drives and bases for pavers, as they pack down. The 1/2″ – 3/4″ is an option as a top dress to landscape areas. The 3/4″ – 1 1/2″ can be used as a base for a driveway or path, or as a top dress.