Question about frame for garage doors

[Drjay9051]

I am enclosing a pole barn.

Here is my problem:

I am putting in 2 garage doors. There are 2 end supports and a center support in place right now. Total width is 24 feet. Originally I wanted to get 9 foot wide doors. Each opening is 136 inches. So a nine foot door means I need to enclose 14 inches on either side of each door. I had considered bolting together either 4 4x4 or 8 2x4. Either way I am concerned about flexing even with a header attached.

I had considered just a small framing on either end but framing a width of just 14 inches sounds odd. I would than have to attach a stud and a piece of siding.

Now if I go to a 10 foot door I am looking at filling 8 inches on either side.

This seems more plausible. 2 4x4 together with bolts or lag screws gets me to 7 inches and from there maybe a 1x and trim.

I even considered block but not going that direction.

Pic shows cenetr support. I will be adding a post directly behind one pictured to set back the door a bit from the edge

Any help is appreciated.

 

[upndown]

That picture does absolutely nothing! Need a few more pictures from outside and inside, as well as height to give an honest opinion.