i have a deck around part of my garage that's about 12' off the ground. for a couple of other reasons i don't let people up there (i took the outside stairs down not long after i moved in), but i've started working on it (the other post i just started), and it's something i've always wondered/worried about since i moved here. every once in a while you see those news reports where a bunch of people are at a party or something crowded up on an upper deck that collapes. i always wonder how you would decide how many people to let up on a deck. truthfully, there are things about the deck i don't like, but as i said, i'm working on it and the basics of how it's built are sound i guess (2x10 joist 16 on center, and i mean to add a couple more 6x6 for support from the ground). it shouldn't be any weaker than a normal height deck once i'm done, plus i do little to no entertaining. but still... anyway, is it something anyone else thinks about?