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Old 04-15-2012, 11:50 PM   #1
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header size for a 18 ft. span


I am removing a partial bearimg wall and putting in a full lenght beam instead over 18 ft. This is in Hawaii so no snow.

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Old 04-16-2012, 07:43 AM   #2
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header size for a 18 ft. span


It should be 18' long.


Sorry, I couldn't resist. Not sure if you're going to get an answer here. The guys who know aren't telling and if they were its too dangerous to do over the Internet.

Pay a local Engineer a few hundred bucks and sleep soundly at night.

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Old 04-16-2012, 07:43 AM   #3
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header size for a 18 ft. span


I have never been to Hawaii, perhaps post some photos, I understand the scenery is great.
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Old 04-16-2012, 02:25 PM   #4
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header size for a 18 ft. span


Quote:
Originally Posted by Nytzzz View Post
This is in Hawaii so no snow.
Whatcha, bragging? We had some sloppy flakes this morning still.

Well, In Minnesota we don't have any tsunamis!

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Old 04-16-2012, 10:29 PM   #5
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header size for a 18 ft. span


You might want to tell what the beam will be supporting.
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Old 04-17-2012, 06:33 AM   #6
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header size for a 18 ft. span


Quote:
The guys who know aren't telling
After posting this I thought about how it sounded.

I don't want to give the wrong impression about the regular members here. They are a great bunch of people and you won't find a nicer group anywhere.

Its not that they won't answer, rather they are reluctant to answer lest something is missed in the translation and someone gets hurt.
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Old 04-17-2012, 09:31 PM   #7
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header size for a 18 ft. span


Quote:
Originally Posted by Nytzzz
I am removing a partial bearimg wall and putting in a full lenght beam instead over 18 ft. This is in Hawaii so no snow.
You can use 2 or 3 18' LVL (10"/12") whatever u like and put a good solid post on each end 3 2x6 nailed to each other should do just fine
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Old 04-17-2012, 09:34 PM   #8
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header size for a 18 ft. span


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You can use 2 or 3 18' LVL (10"/12") whatever u like and put a good solid post on each end 3 2x6 nailed to each other should do just fine
two 9.5" deep lvls on an 18' span seems light but i don't really know what's above it.
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Old 04-17-2012, 09:51 PM   #9
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header size for a 18 ft. span


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Originally Posted by itsnotrequired

two 9.5" deep lvls on an 18' span seems light but i don't really know what's above it.
They will still work and thats a good question
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Old 04-17-2012, 10:21 PM   #10
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header size for a 18 ft. span


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They will still work and thats a good question
there is also the question of meeting code vs getting what you want. the floors may be bouncy as hell and still meet code but i would rather exceed code and minimize bounce than live in a romper room.
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Old 04-17-2012, 11:13 PM   #11
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header size for a 18 ft. span


NYTZZZ,
It's like others have pointed out. You really should consult an engineer for a definitive answer.

There are still snow load consideration from what I came across with Hawaii.

*You can visit THIS site for some snow load considerations and some other good details.

*You can visit THIS IBC tables, as the above references, in getting an idea of what might be required for a header. That page is possibly dated though, so you would need to verify whether it is still applicable for you.

*THIS is an alternative to the IRC table and again just in giving an idea of what is considered. An engineer can give proper requirements and/or alternatives.

------------------------------------------------------------------------------------

This is just FYI in possibly getting you in the right direction....

Good luck
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Old 04-18-2012, 10:12 AM   #12
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header size for a 18 ft. span


MY local Lumber yard will size the necessary LVL or GlueLam for me. They get the truss manufacturer to do it. I just tell them what it is for and what it supports.
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Old 04-18-2012, 10:15 AM   #13
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header size for a 18 ft. span


Maeling, how do you get a truss manufacturer to size a Glulam or LVL? Neither of these are trusses, and it would be a coincidence if a truss manufacturer also happened to manufacture Glulams or LVLs.
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Old 04-18-2012, 06:20 PM   #14
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header size for a 18 ft. span


The lumber yard gets these and I joists through the Truss manufacturer and as such their engineers do the calculations.
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Old 04-18-2012, 07:56 PM   #15
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header size for a 18 ft. span


Quote:
Originally Posted by itsnotrequired

there is also the question of meeting code vs getting what you want. the floors may be bouncy as hell and still meet code but i would rather exceed code and minimize bounce than live in a romper room.
Totally agree with u me personally I always try to exceed code in watever I do

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