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a question about O/A Plates height.

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When it says 2516 O/A Plates height to garage, does it mean the garage floor to ceiling height will be 2.5m?
Hi,

I believe the garage floor has a slope to drain the water to the outside. I would suggest to ask your builder where the O/A height is supposed to be measured.
No it means that the pitching point for rafters or trusses is at that height. With a typical 'stick' type construction with ceiling joists at 450 centres your finished ceiling height would be 2506.
With a truss roof set up with trusses typically at 900 centres there would be a ceiling batten fixed to the bottom chord giving a finished ceiling height of around 2460
Thanks Peter, measured it this arvo, it's around 2520 from floor to truss, so I guess my garage will have a finished ceiling height of 2.5m.
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