We remodeled our house and now had a new 9x6 master closet to fill. During construction I saw this design on ana-white.com and liked the style, but wanted to customize the layout. I found an online closet designer and played around until I found something my wife and I liked. We ended up with a 9 foot long his/hers double hanging on the ends and a long hanging section in the middle. And on the other side 8 feet of shelving (leaving about a foot for other storage).
I bought the pipe as a 10 foot pipe to be cut and threaded (for free by the store). I did have to change the design a little because the store cannot thread pipe less than 14 inches. So I ended up replacing the short pipes and T's with 2x4s. That made it a little cheaper and I still like the end result.
We stained all the wood using Minwax "Early American". This probably accounts for most of the build time.
Then I put together the supports and brought them into the closet to add all the pipes and slats. I started with the wall for hanging. And later did the shelving.
Here's another forum with more pictures of this project: