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-   -   new garage 28' x 28' (http://www.diychatroom.com/f19/new-garage-28-x-28-a-84197/)

Sunny15 10-17-2010 07:31 PM

new garage 28' x 28'
 
Our new garage will have two 9' tall garage doors and a storage attic. We will not be able to stand up in the attic but that's OK. My question concerns the distance between studs in the garage walls. They will be 2x4's set 24" apart and the roof trusses will be 28' wide, set 24" apart with no other support. Should it be built with more strength? I am a bit worried

Daniel Holzman 10-17-2010 08:10 PM

You certainly should discuss this with the building inspector. I assume you have a permit, but maybe you live in a no permit area. If you don't need a permit, you should discuss this with the designer of the garage, or if there is no designer, you need to talk to the contractor. 2x4 construction 24 inches on center would probably not fly in my area, but since you don't say where you live, I have no idea if it meets code in your area.

<*(((>< 10-17-2010 08:13 PM

It sounds as if you are not getting this inspected, as that I don't think would pass inspection.

If it were my garage I would be at least 24" on center for the trusses, and 16" on center for the 2x4 studs, with a double top plate. Some people choose to go 2x6, 24" on center for added insulating factors, but never on 2x4's with a garage.

I don't know what your snow loads are where you are located but I would check into the slope of your roof along with the needed support from your trusses, walls, foundation, etc. Sounds like you need to get some additional local information from a reliable source.

Studs are cheap, if you are in a no permit needed area, I would spend the extra $100-150 to add the extra studs to make it 16" O.C.

Pistol Pete 10-18-2010 10:20 AM

Where I used to live, 2x4s on 24" centers was OK for a garage. That's what I had. However, if I were to do it again I'd spend the extra bucks for 16" centers, but not so much for strength. Someday you'll want to get some fancy storage racks, or cabinets for your garage, and you'll find they're all designed for 16" centers.

Gary in WA 10-18-2010 02:30 PM

2x4 studs, 24"o.c. is minimum code. If your local B.D. approves, fine. Since at lest '97 that has been minimum: http://books.google.com/books?id=0ri....I.R.3&f=false


IRC 2009: 2x4, 24"o.c., one story with attic:
c. A habitable attic assembly supported by 2 4 studs is limited to a roof span of 32 feet. Where the roof span exceeds 32 feet, the wall studs shall be increased to 2 6 or the studs shall be designed in accordance with accepted engineering practice.

Gary

jlhaslip 10-18-2010 02:45 PM

Around here, 2 x 6 @ 24" o/c walls and the trusses stacked above them works fine. And allows for better insulation, which is important in our climate.:thumbup:
In the Olden Dayes, 2 x 4's on 16" centres was good enough.:whistling2:


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