The ~17' (wood, segmented) garage door is sagging,..bowed in the middle, ~25 years old.
I've heard it's from a high moisture environment...from driving in with a snowy/wet car & no fans/ducting to vent the "wet".
Plan on putting in vents this summer,.. also to cool the "shop" :-).
Question; There's kits available to straighten out the garage door;I was going to try to clone it with iron strapping, angle iron,threaded rod & turnbuckles. (low buck & wayy too much time here)
It looks like tha angle of contraction would bow the door even more..am I missing something..or just dim? I'm guessing the latter.