Sand / Gravel Arenas, sand boxes, paver patios and soil amendments are a few applications sands are used for. Gravels are ideal for driveways, walking paths and low-cost landscape covers. Leveling Sand Mortar Sand Road Base Untreated Decomposed Granite Chip Gravel (3/4″) Chip Pea Gravel (3/8″) 2″ Boise River