Download the plans here: http://rollingworkbench.com/index.php...

These are the least expensive free-standing shelves I could some up with that were still worth building. The project took me about 2 hours to build 16 feet of shelves. These shelves measure 96″ wide by 18″ deep by 75″ tall. They will safely hold 200lbs per shelf or more.

Total cost $36.63 for the 8' section or under $19 per 4′ section, which is how you would buy them from the store.