3/4" Round Stone is a round pit sourced material that range from 3/4" to 3/16" and is well known for its superior drainage qualities as well as its resistance to compaction because of its round particle shape. Many use 3/4" Round Stone for drainage around foundations, weeping tile, and in trenches. Due to its round shape, this stone also makes for a great roofing stone that won't puncture your roof membrane.