removing inside load bearing wall


  #1  
Old 06-22-02, 03:37 PM
firebrand
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Question removing inside load bearing wall

I need to remove an inside load bearing wall to increase room size. QUESTION: Can I use 2by10s or 2by12s for the header ie 2 or 3 nialed together to support the roof weight. The roof is a slant 7 with the load bearing wall approx. 1/2 way up the long slant of the roof. The span is 20 feet. The header will run cross ways of the roof rather than with the roof. I will attach one end of the header to an outside wall on a block foundation, the other end will be attached to an inside wall over a pier. Will 2by10s be sufficient...or do I need 2by12s...and do I need more or less than 3. Thank you for your insight.
 
  #2  
Old 06-22-02, 04:52 PM
T
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Removing load bearing wall

http://www.bobvila.com/HowTo/index.h...ringWalls.html

"Remember to check with your local building officials beforehand if you're planning to change any framing. They'll review your plans, highlight any problems, and suggest solutions in addition to the needed permits and inspection schedule.

NOTE: Work that violates local building codes often invalidates your homeowner's insurance, along with possible health and safety dangers. Getting a permit and having work inspected is your assurance that the job is done properly."

"Many communities require permits anytime you open up a wall regardless of structural changes. But the permits and inspections are your assurance that the project will be done safely, and most building officials can help you do the best job possible. "
Hometime Projects. Retrieved 22 June 2002. http://www.hometime.com/projects/how....htm#reframing

http://www.umass.edu/bmatwt/beama.html

http://www.umass.edu/bmatwt/beamb.html
 
  #3  
Old 06-30-02, 01:36 PM
woodbadger
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You havn't given us quite enough information to say how big the support beam needs to be. Namely, what is the span of the slant roof?

The middle support will be holding up 1/2 of the load, so you will want it to be sized correctly.

My guess is that the two spans must be longer then 20 feet each (else why would a person use a middle support). You can size this out like one side of a 40 foot roof span. So, for this hypothetical situation you would use 3 - 2x14 microlams.

I typically oversize beams so I don't have to hire an architect. You can do the same thing. Draw what you are going to do, pull a permit, the building inspector will calculate the code requirements and if you are larger than required, no problem. If you have calculated too small, he will say so. He may even tell you what size is required (they are not supposed to do design engineering).

The post that holds up this support must also be designed correctly. When you say attached, I hope you mean supported. A hanging bracket for this size beam will cost several hundred dollars. You will want to make sure you are setting this beam on top of somthing solid all the way down to the foundation.
 
 

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