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max header span length rilapoin 01-27-2007
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Posted by on January 27, 2007, 9:44 am
Hi,
If I am adding a large bay window with a rough opening of 8ft in a
load bearing first floor of a two story home can I use 2x12s for a
header? I would using douglas fir. Any thoughts are appreciated.
Thanks


Posted by hawgeye on January 27, 2007, 10:02 am

> Hi,
> If I am adding a large bay window with a rough opening of 8ft in a
> load bearing first floor of a two story home can I use 2x12s for a
> header? I would using douglas fir. Any thoughts are appreciated.
> Thanks

Assuming it's a 2x4 stud wall, you'll have to put a piece of 1/2" plywood
between the 2x12's to make up the right thickness. You may also want to use
double king-studs on the ends. If you frame it in right and the load you
mentioned isn't out of the ordinary, you should be OK.

--
hawgeye ©



Posted by RicodJour on January 27, 2007, 11:07 am
rilapoin@optonline.net wrote:
> Hi,
> If I am adding a large bay window with a rough opening of 8ft in a
> load bearing first floor of a two story home can I use 2x12s for a
> header? I would using douglas fir. Any thoughts are appreciated.

Visit the Canadian Wood Council's web site and online design tool,
SpanCalc.
http://www.canadianwoodcouncil.ca/design/tools/calcs/SpanCalc_2002/
Make sure you understand your local code load requirements and
orientation of framing members, then start clicking away.

R


Posted by Michael Bulatovich on January 27, 2007, 11:52 am

> rilapoin@optonline.net wrote:
>> Hi,
>> If I am adding a large bay window with a rough opening of 8ft in a
>> load bearing first floor of a two story home can I use 2x12s for a
>> header? I would using douglas fir. Any thoughts are appreciated.
>
> Visit the Canadian Wood Council's web site and online design tool,
> SpanCalc.
> http://www.canadianwoodcouncil.ca/design/tools/calcs/SpanCalc_2002/


How long has that been there?
--


MichaelB
www.michaelbulatovich.ca



Posted by RicodJour on January 27, 2007, 7:09 pm
Michael Bulatovich wrote:
> >
> > Visit the Canadian Wood Council's web site and online design tool,
> > SpanCalc.
> > http://www.canadianwoodcouncil.ca/design/tools/calcs/SpanCalc_2002/
>
>
> How long has that been there?

Long time. They have some useful tools; a worthwhile site to poke
around.

R


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