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11-26-2011, 04:29 PM   #1
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## 2x10 span

will a 2x10x16 that you buy at home depot spane 15 feet 16.oc.

11-26-2011, 04:35 PM   #2
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Are you talking about a floor?

House--deck--barn?

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 11-26-2011, 06:05 PM #3 journeyman carpenter     Join Date: Sep 2011 Location: nova scotia canada Posts: 3,195 Rewards Points: 1,006 species, region ?? required to answer this question to be up to code
 11-26-2011, 06:30 PM #4 Civil Engineer   Join Date: Mar 2009 Location: Boston Posts: 5,471 Rewards Points: 4,522 A 2x10x16 by definition is 16 feet long, so it certainly will span 15 feet. Whether it will hold up the load you are planning to put on it is an entirely different question, but since you did not ask, I am not telling.
 The Following 2 Users Say Thank You to Daniel Holzman For This Useful Post: Willie T (11-26-2011), woodworkbykirk (11-26-2011)
11-26-2011, 06:56 PM   #5
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## Determine the Use

biglou1957; Assuming that you are using the 2 X 10 for floor joists; You need to determine what the live load requirements are and the dead load; e.g. in a one-family dwelling, for sleeping rooms the live load is typically calculated at 30 pounds per square foot and for other habitable space (living room, great room, den, kitchen) the live load is typically 40 pounds per square foot. The dead load will usually be calculated at 10 pounds per square foot. The span you get depends on the species of the wood and the grade, e.g. doug fir, hem-fir, #1 , #2. Other factors can also play into the span such as if you live in a high wind zone or seismic area.

It sounds like your work is structural and in most areas this requires a building permit and therefore the plan review process. Your proposal, if for floor joists in a one-family dwelling, if for floor joists, if not in a high wind or seismic area, if no less than #2 hem-fir, if 16" on center, should do it, but come back with more specific information. If these are joists for a storage area let us know what you are storing. There is some very good talent contributing to this site and it you provide specific information someone is likely to know the answer.

 The Following User Says Thank You to TheCamper For This Useful Post: woodworkbykirk (11-26-2011)
 11-26-2011, 10:58 PM #6 Tileguy     Join Date: Mar 2006 Posts: 10,705 Rewards Points: 558 Don't wait for more information from the OP guys just run-on with anything that comes to mind.
 11-27-2011, 11:06 PM #7 Member   Join Date: Dec 2010 Location: BC Canada Posts: 500 Rewards Points: 500 have to refer to your local building code...i'm sure the building inspector will want to see what you have planned before you go ahead and build it, however.
11-28-2011, 07:24 AM   #8
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You ask if "a" 2x10 will span that far. How many are we talking about? Where are you building? Look in the UBC book. In a word, yes. We span 16' all day long for floor joists under live loads here in the Midwest. Cali and Flo...might have to bump up to 2 x 12.

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