Good afternoon! Yes as described the rock cover you are interested in in 30" in width and 13" in height therefore it has plenty of room for the dimensions you are inquiring about. Any other questions please let us know.
Howdy Sarah, You could drill holes and put wire and anchor these are you could with just about anything. happy anchoring, Coach Dave
Hi Harvester, This boulder as well as our smaller ones do not come with stakes nor have a hole cut out for them to prevent from moving in such strong winds. That might be something to try out, you can drill into the rock if you wish to attached some kind of stakes. The large boulder is about 25 pounds and I consider it still low to the ground, having a few outside on display I have seen it through some storms with out moving, but nothing like 100 mph wind.
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It's advertised as a natural boulder. If that is correct you can set a car on it. I.e. extremely sturdy. Probably the strongest thing on your property.
Product is very light. Feels like it is made with high density surfboard foam and a skin of fiberglass resin.