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Thread: WOODWORKING QUIZ for 1 July 04
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1st July 2004, 10:02 PM #1
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WOODWORKING QUIZ for 1 July 04
Good Evening Friends,
Using Douglas fir floor joists of 2 x 10 timbers. What is the allowable clear span for them set on 16" centers?
Respectfully,
Ralph Jones Woodworking
London, Ohio
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1st July 2004, 11:38 PM #2
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What's the "F" rating of your douglas fir? Sorry but in Australia you can't use rule of thumb methods anymore for sizing your framing, and in this litigious day and age you'd be a fool to do so. Follow all the rules and if perchance something goes wrong then you won't be the one to get sued (it'll be the certifying engineer or the company that wrote the manual or the timber grader or supplier etc etc)
Mick"If you need a machine today and don't buy it,
tomorrow you will have paid for it and not have it."
- Henry Ford 1938
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2nd July 2004, 10:39 AM #3
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Hey Mick,
In our case it would be the Western Wood Products Association who would get the blame.
Respectfully,
Ralph Jones Woodworking
London, Ohio
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2nd July 2004, 10:47 AM #4
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OK Ralph. now you have us curious.. what is the allowable clear span with 16" centres!!!
KevI try and do new things twice.. the first time to see if I can do it.. the second time to see if I like it
Kev
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2nd July 2004, 09:36 PM #5
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WOODWORKING QUIZ ANSWER for 1 July 04
Good Evening Friends,
According to the Western Wood Products Association here in America, the allowable span for a 2 x 10 Douglas fir, laid out on 16" centres is 16' 9" clear span. Personally, I still prefer to have a beam in the center as I feel there is too much bounce on a floor of that size.
Thank you for your support.
Respectfully,
Ralph Jones Woodworking
London, Ohio
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