Posted Sep 27, 2009, 9:20 AM
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Registered User
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Join Date: Sep 2007
Posts: 458
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It varys. whats more important is floor - floor height as ceiling voids vary. As a guide, and this is just a guide for residential i would say 10ft (3.05m) with 10'' concrete floor deck. For commercial 13-15ft (3.96-4.57m), usually containing air-con ducting, electrics etc.
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