Shea Alexander designed this stool as the perfect stool to use at your workbench. This is the second stool in his stool-building series on his blog, Amidst The Shavings. Paid subscribers to his blog receive these plans as a digital download for free, along with a guided series of build posts walking you through the build process and much more.  
These plans include elevation drawings, cut lists, and full-scale seat, leg, and rung patterns. 
This is a set of full-scale printed plans.  A digital download is available HERE. 
Material kits for this stool are also available HERE
 
These plans are drawn by Matt Adams with proofreading by Shea and Jeff Lefkowitz.