The big straight ladder is a bit long to be anything other than right up to the rafters I think.I think the step ladder is a great idea with 1 caveat. The angle. If you can remove the side braces and spread it to closer to a 45⁰ angle going up, I think it would work really well. At the current >60⁰ ascent, I think it's a might steep for how close together the rungs are, especially with the sides. Optionally, remove the metal hinge thing at the top also and gain 2 ladders, run 1 from the ground up the wall and the other crosswise above it with the end on the 6x6 and the other end supported by some sort of shortish post (or caught by the chains). The criss-cross gives some of the tree type variety/height while gaining more roots in the same area.
The wooden ladder (15') looks like the rungs are close to perfectly spaced out, and with that length, could make for quite the range of avoiding options, especially if it were angled so the upper end was no more than 6 feet up (or hang in from the chains as a swing)
I will go out to morrow and do some measuring and trigonometry!
I am thinking the 2x4 boards across the step ladder could solve the angle point because they could alternate sides in the steps so the chickens could hop from one up to the other.
I can see it in my head but can’t explain.
Basically the 2x4s become the perches - the steps of the step ladder just supports them.
