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Floor Joists

McShan

Bronze Member
Joined
Sep 27, 2011
Messages
74
Location
Louisiana
Why are 2X12's not listed for Ceiling Joist? Just Curious? Not in any ceiling joist span table in the IRC that have seen. Or would table 802.5.1apply.
 
they are listed in the floor and rafter span tables. Just got my curious. Rafter table has note b over 26 foot. Kinda makes sense, since the longest 2X12 we can get locally is 24 foot.
 
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