How Big is Too Big? Choosing the Right Size Rock for Your ...
· These larger, jagged, baseballsized rockery rocks are often used in smaller retaining walls, or embedded in wet landscapes to provide greater stability for building other structures. Spalls can be compacted fairly well while still allowing water filtration. 3/4 Inch to 2 Inch River Rocks. River rock is a popular type of smooth gravel, typically one to two inches in diameter. This type of rock ...