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Old 04-30-2012, 08:38 PM   #1
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Header size needed?


I need to size a header to convert a current window (32in) to a 12 ft clear opening. The wall for the header is on the main (middle) level of a three level home. The wall is an internal wall and supports one floor above (bedroom).

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Old 04-30-2012, 08:39 PM   #2
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Header size needed?


You need to get an engineer on site to provide the size header and the rest of info for this job; can't be done over the internet.

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Old 04-30-2012, 09:37 PM   #3
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Header size needed?


Quote:
Originally Posted by Mig44
I need to size a header to convert a current window (32in) to a 12 ft clear opening. The wall for the header is on the main (middle) level of a three level home. The wall is an internal wall and supports one floor above (bedroom).
This isn't a forum for sizing headers. You need to have an architect or engineer do this.
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Old 04-30-2012, 09:39 PM   #4
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Header size needed?


Quote:
Originally Posted by Mig44 View Post
I need to size a header to convert a current window (32in) to a 12 ft clear opening. The wall for the header is on the main (middle) level of a three level home. The wall is an internal wall and supports one floor above (bedroom).
12' is a stretch for a traditional multiple 2x header. you should be looking at lvl, steel beams or similar.

since this is the second floor, need to consider bearings below, likely down to grade. to echo what bob22 said, this isn't something to guess at. if looking at lvl, lots of lumber yards will size the beams for you if you give them some plans of what you are trying to do. most do it for free or free if you buy the lvl from them.

when you start talking middle floors of multi-story buildings, however, you may be headed for the consultation of a structural engineer.
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