What is the reasoning for putting them in the garage first (other than to force you to declutter

)? Is it so far out to the coop that it would be a PITA to check on them? You have to go out for the other chickens anyway right?
As far as height, I think mine is about 18" high. They can fly a foot at under 2 weeks. In fact, if I remember they can fly 2' at 2-3 weeks. My first set were getting out of the bathtub by 3 weeks but those that then chose to go to the bathroom floor couldn't get high enough to get back in. I guess we could have given them a couple of intermediate "steps" but put them out in the barn instead. It was early July by then.