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-   -   header size for a 18 ft. span (http://www.diychatroom.com/f19/header-size-18-ft-span-140411/)

Nytzzz 04-15-2012 11:50 PM

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.

CplDevilDog 04-16-2012 07:43 AM

It should be 18' long. :whistling2:


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.

Daniel Holzman 04-16-2012 07:43 AM

I have never been to Hawaii, perhaps post some photos, I understand the scenery is great.

Beepster 04-16-2012 02:25 PM

Quote:

Originally Posted by Nytzzz (Post 899875)
This is in Hawaii so no snow.

:mad: Whatcha, bragging? We had some sloppy flakes this morning still.

Well, In Minnesota we don't have any tsunamis!:thumbup1:

B

cleveman 04-16-2012 10:29 PM

You might want to tell what the beam will be supporting.

CplDevilDog 04-17-2012 06:33 AM

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.

ninjahero 04-17-2012 09:31 PM

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

itsnotrequired 04-17-2012 09:34 PM

Quote:

Originally Posted by ninjahero (Post 901384)
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.

ninjahero 04-17-2012 09:51 PM

Quote:

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

itsnotrequired 04-17-2012 10:21 PM

Quote:

Originally Posted by ninjahero (Post 901405)
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.

Ralph III 04-17-2012 11:13 PM

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

mae-ling 04-18-2012 10:12 AM

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.

Daniel Holzman 04-18-2012 10:15 AM

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.

mae-ling 04-18-2012 06:20 PM

The lumber yard gets these and I joists through the Truss manufacturer and as such their engineers do the calculations.

ninjahero 04-18-2012 07:56 PM

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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