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Old 02-28-2009, 09:26 PM   #1
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A 2x6 to span 21' as a ceiling joist???


Someone suggested this on another forum
Every span calc I've seen I'd be lucky to be able to use a 2x10 to span 21' ???

http://www.terrylove.com/forums/showthread.php?t=27018
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Old 02-28-2009, 11:08 PM   #2
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A 2x6 to span 21' as a ceiling joist???


The AWC specs that as a 2x8 12 on center for an L/180. 2x10 for SPF #2, however.
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Old 03-01-2009, 01:58 PM   #3
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A 2x6 to span 21' as a ceiling joist???


A 2x6 ceiling joist for that length is not correct if this was just a garage with no load on top.
You don't mention what's on top, but if the span needs to be that long I would look into engineered beams.
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