Gday Darren
Quote:
I don't think it's large enough.
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He mentioned having a light mount, so 100x100 should be plenty strong enough.
I agree with Matt that creating a pyramid would be better
but again, it depends on the load, and what it has to resist.
ie Most piers are massively over designed for strength,
what you need to look at most times is vibration damping.
Andrew