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Decking Post Size?

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  1. #1
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    Default Decking Post Size?

    I'm looking at replacing some rotten posts on my deck. It stands about 3m above ground level. The posts which are currently in place look like 90 x 90 oregon. I'm looking at replacing these with 90 x 90 F27 DAR Kiln Dried Merbau. Will this sizing be OK? Most reading I have done suggests minimum hardwood post size of 100 x100.
    Thanks

  2. #2
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    Does this support any roof structure also?
    If not 90 x 90 would be fine, (F8 treated pine post would work so F27 no problem)
    100 x 100 your looking @ are probably unseasoned.

  3. #3
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    Thanks for the quick reply. No roof to be supported. We were wanting to steer clear of the treated pine for appearance. Also, it looks like merbau is rated well for bushfire zones (I think we're just on the edge of a buffer zone)

  4. #4
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    You can get 125 x 125 Merbau post if you want the "look" of larger posts, (is quite a bit more expensive though)


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