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Using boulder as pier footing?
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11-11-2017, 07:02 PM
SkyWatch
(Dean)
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Join Date: Jan 2013
Location: Adelaide
Posts: 401
There is unlikely to be too much movement in sandy soil, so it should be fine. Rocks can move out a bit, but more in expansive or clay soil.
A rock that size will act just as well as a good deep foundation.
Have fun!
- Dean
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