Confused by 602.10

[Tony112]

Hello all, I’m tackling my own garage build and have ran into the first question in the process and that’s the irc picture they refer you to in doing garage door headers. I have a 16’ and a 8’ on a 36’ long front. My issue/question is they show the header extending 16” past the opening on one side and it ending on the other with the jack and king studs. My question is, is this how they want it done? With 16” of header extending past the opening of the door? I’ve never seen it done this way before. I was initially planning to do 3 jack studs and 2 king studs, and have the header be only long enough to sit on the 3 jacks on each side. I’m wondering if someone can shed some light on this troublesome question.... Thanks

 

[mike93lx]

"yard" is an immensely unhelpful location. Please put at least a state there as weather, code and local restrictions can dictate a lot of advice given

What do the plans show for construction?

 

[K'ledgeBldr]

I’ll assume you’re referring to the “braced wall panel” or “shear panel” detail. If that is correct it’s about the proximity of the opening to the corner of the building, and having sufficient bracing AND support of the corner and the header.

And yes, it’s a requirement just about everywhere today- then again, there are plenty of IRC codes that are not enforced by the AHJ. So, the only way you’ll know for sure if it’s required is to contact your local AHJ and ask.

 

[Tony112]

I should of said Im in northern Va. There is about 4’ on each side of the door opening and 4’ between the 2. I’m guessing maybe the 16” is the minimum space they allow you to have for a wall?

 

[pattenp]

That's how the header was done on my garage. I always thought that they just used a LVL longer than needed but was told it was code to provide better shear strength.

 

[Dustball]

I should of said Im in northern Va. There is about 4’ on each side of the door opening and 4’ between the 2. I’m guessing maybe the 16” is the minimum space they allow you to have for a wall?

If you look at the detail, it says to fasten the sheathing to the header portion that overhangs using 8D common or galvanized box nails in a 3" grid pattern. This is so that the overhanging portion of the header combined with the sheathing gives good bracing leverage. You're also nailing the sheathing to the framing in a 3" OC pattern from top to bottom on that panel.

It also says in 602.10.5 what this overhang/width should be.

 

[Tony112]

That's how the header was done on my garage. I always thought that they just used a LVL longer than needed but was told it was code to provide better shear strength.

Hey pattenp, did they go the 16” on both sides or just one side? This is a new one on me. Lol I was planning to just have 3 jack studs under both sides and have the lvl at that same measurement. Which would be some 9” longer than the actual opening. But I don’t mind going bigger, just something I’ve never seen before.

 

[Tony112]

If you look at the detail, it says to fasten the sheathing to the header portion that overhangs using 8D common or galvanized box nails in a 3" grid pattern. This is so that the overhanging portion of the header combined with the sheathing gives good bracing leverage. You're also nailing the sheathing to the framing in a 3" OC pattern from top to bottom on that panel.

It also says in 602.10.5 what this overhang/width should be.

I think I’m going to go the 16” on the one side and do 3 jack studs on the other. I’m having a hard time even reading these codes and tables on my phone. But yes I saw the 16” overhang on the left side of the diagram and was totally threw off by it.

 

[Dustball]

I think I’m going to go the 16” on the one side and do 3 jack studs on the other. I’m having a hard time even reading these codes and tables on my phone. But yes I saw the 16” overhang on the left side of the diagram and was totally threw off by it.

Talk with your building code department.

 

[Falcon67]

This is how my 16' header looks - final studs added later.

 

[Tony112]

That’s how I’ve always seen them, not with a 16” overhang

 

[Tony112]

I’m a electrician so I can’t be too sure about carpentry though lol

 

[Dustball]

That’s how I’ve always seen them, not with a 16” overhang

This may help- https://www.jlconline.com/how-to/framing/the-portal-frame-option_o

 

[CraigStu]

I’ll assume you’re referring to the “braced wall panel” or “shear panel” detail. If that is correct it’s about the proximity of the opening to the corner of the building, and having sufficient bracing AND support of the corner and the header.

And yes, it’s a requirement just about everywhere today- then again, there are plenty of IRC codes that are not enforced by the AHJ. So, the only way you’ll know for sure if it’s required is to contact your local AHJ and ask.

Bingo, winner, winner. My SIL is building a garage right now. We helped w/ the trusses last friday. He was required to run the headers all the way to the corner of the wall for that exact reason.