1”-2” tumbled round lava rock
3 bags recommended for a 36” Round
6 bags recommended for a 42” Round
8 bags recommended for a 52” Round
12 bags recommended for a 62” Round
5 bags recommended for a 52” Rectangle
7 bags recommended for a 62” Rectangle
9 bags recommended for a 72” Rectangle
12 bags recommended for a 82” Rectangle
15 bags recommended for a 92” Rectangle