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Landscape Design

Lava rocks for use under an on-grade deck?

12 years ago

Hi All,

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?

Thanks,

Thomas

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Comment (1)

bahia
12 years ago
Red lava rock ought to discourage weeds if applied over weed fabric, but be aware that it won't necessarily discourage rodents/vermin. If it is so low to the ground that you can't visually inspect below it, be alert for signs of rodents and you make need to take appropriate measures.

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