I can see going up 12' if you have the space, but getting at stuff up there is hard. I did that in one space in the barn and I seldom try to access what is up there, as it's too hard to reach.
But those shelves and benches should last a real long time!
Yeah I feel ya, those last top shelves are quite up there. I have a six foot ladder right now but will need to upgrade to an 8 foot or so.. haha
I plan on putting stuff up there like you said that I will not need much.
Thanks, I hope so.. with them indoors they should last a long time.