I'd say the hardest part was putting up the framing. I think that it would have gone a lot smoother if I would have asked for help, but I lived and learned why I don't make a great construction worker. But man, my trig skills are solid! I guess I did graduate as an aerospace engineer and if I was bad at math, we'd all have some problems.
The gym has three sections. A twenty degree wall, a forty-five degree wall, and a roof. There is a traverse that starts at the roof and ends on the twenty degree wall that is definitely hard. Still haven't able to put it all together in a single try.
I really have to thank Justin Mages for giving me a great deal on all the wood! And most of the holds are from Contact holds and I've been pleasantly surprised. Super nice and don't tear up the hands. Which is good when I climb every night...