#HTEHow to Determine the Proper Dimensions For Your Own Workbench
Building your own workbench, or modifying an existing one, to better suit your specific dimensions, can pay huge dividends in terms of ergonomics. And this is one instance where consulting ergonomics manuals and diagrams to come up with a height isn’t going to help you, because those are made for the 95th percentile, and this bench is made specifically for you.

Therefore the best starting point is to consider what type of work you often do, what tools you use, what operations you perform, and where things will be stowed during your workflow. Here Jim Tolpin, the proponent of working out dimensions By Hand & Eye, explains how he determines the correct dimensions of his own workbenches:

http://www.core77.com/posts/52221/How-to-Determine-the-Proper-Dimensions-For-Your-Own-Workbench