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Old 10-15-2011, 10:33 PM   #31
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floor over 24" o.c. truss joists

OK, thee was an email address on my paperwork for the structureal engineer and he wrote me back with a new ph number to call back mon, so I hope to find out from him, he was very helpfull when I was building

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Old 10-24-2011, 08:20 PM   #32
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floor over 24" o.c. truss joists

24" o.c is pathetic for a floor joist layout. 19 3/16" o.c is the max and this is only for engineered joists. for a smaller engineered joist 16" o.c is common for renovation situations involving additions . for regular lumber 12 o.c is pretty standard for most of the homes i have built .

the only time i do 24 " o.c is for roof trusses. take note that the bottom chord of a roof truss isnt rated to use as a floor. if you want a section of the attic as livable space or as a small section of floor space spec this so the engineer can allow for it when designing the trusses
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Old 11-09-2011, 08:27 AM   #33
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floor over 24" o.c. truss joists

OK, finaly found out about my trusses. The strctural emg said the trusses are designed for all residential rooms design loads. Living rms, bedrms, kitchens and baths. He said to use threequarter T@G plywood, and screw and glue it. Now I know some of you thought these were not up to the job, but this is what he's saying, and he's a legit guy. Now, I've never heard of any, but is there a lighter weight sheetrock I could use to keep weight to a minimum?

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