Lava rocks for use under an on-grade deck?
I am building a 20'x12' deck on grade in my front yard. Underneath the deck, I want to make sure:
1. No weeds grow
2. No rodents or vermin turn it into their home/nest
I've read that one should put down weed suppressing cloth and then put 4" of gravel over it. Can I use red lava rock for the same purpose?
Any pros over gravel? Cons I should be aware of?