I don't know about the thread, but this Youtube video shows how to construct racks to hold plastic storage bins:
http://www.youtube.com/watch?v=UoWnH0q9a9I
and the website it comes from is
http://www.cheapsheds.com/
Edit: The Youtube video gives a list of materials to make the racks.
Also found this website that explains how to make the PVC racks:
http://studio5.ksl.com/?nid=61&sid=5148165