Long walls - how?

[Paisley]

Hello,

I am building a 12x24 tall barn shed.

I couldn't get 24ft 2x4s and 2x6s - so how do I build the 24' side walls? 2 sets of 12ft walls attached at the top plate? (pic drawing as idea attached) But how to divy up the top and bottom plates. I am leaning toward opt 1 (in pic) as it is a lot like the support recommended for the floor rims given the same issue. Opt 2 seems like it is too much weakness at the center. Regardless, I would use some steel hardware to connect the sections.


Thoughts?

Thanks

 

[Phil the shed man]

Building the wall in 2 or 3 sections will not affect the strength. The bottom plates will be attached to the floor and the siding will also be attached to the rim joists so there will be plenty of strength there. For the upper top plate, make sure to overlap the lower top plate joint by 4ft. This will give the top plates strength. When the trusses and roof sheeting are installed, this will lend attitional strength to the wall.