pole barn hanging overhead doors w/ no ceiling

[bryan312]

Hello, I've been here before for advice on framing my garage and it's complete!
So since the construction uses steel trusses, there is no ceiling, wooden truss to hang door tracks off of. I have searched and couldn't find anything, assuming most people use rollup doors in this application.
my 10' doors were just delivered so I am hoping I could figure out a way to hang the tracks, I guess I am going to need to get very creative. But has anyone done this before?
I know there is a support purlin up there that goes across but it probably isn't in the position it needs to be.

 

[Hot Rod Grampa]

Slide another 2x4 or 6 into the cavity of the trusses that best lines up with the back of the track. The back hang doesn’t have to be perfectly plumb to work. Fasten the 2x to the rafters with a few heavy duty strap clamps, like a 2 hole heavy wall conduit strap. Other than your back hang being long, it will work fine. You will need to use longer diagonals to keep the track from shifting but it should be Ok. You could have ordered follow the roof pitch track and hardware and the doors would be hugging the ceiling/rafters.

 

[bryan312]

Here's a shot inside, I have one half installed with a rope holding it up

So you're saying add another one similar to the one that is there (with the rope) but further back over the end of the track?
Or add lumber in between the purlins, perpendicular to them?

I didn't know that type of track exists, that would have been interesting!

Also, I had to share the exterior of the door from Cloplay, the quality is excellent!

 

[Fatboy148]

Prepunched steel angle is what I would use with bolts and lags.....

Suspend it and brace it to your purlins

 

[nadogail]

Prepunched steel angle is what I would use with bolts and lags.....

Suspend it and brace it to your purlins

We call the Prepunched steel Kindorf, for an early manufacturer.

 

[Hot Rod Grampa]

Yes add another 2x6 back near the end of the track. That door will weigh in the neighborhood of 300 lbs. so each corner will be carrying 75 lbs, only when the door is open. Punched angle down and then diagonals. You’ll be fine. The track can safely be cantilevered up to 1/4 from the end of the track so you can reduce the length of the back hang by a bit. Your choice.