If you aren't familiar with the industry of extension cords, then you might not be aware of the fact that there are different extension cords types to choose from. Many people assume that any extension cord will suit any situation, but the truth is that there are certain cords designed specifically for certain environments and situations. For example, when you are in your home and want to plug in a lamp or small appliance, you don't need industrial extension cords. Instead, a smaller cord will usually be sufficient for indoor use.
A contractor grade extension cord types are designed with several specific features to make them useful on a job site or with an outdoor project. Typically, these cords are longer than standard cords because there is a need to move the equipment around the job site. You might consider specialty types of cords, such as power tool cords or electrical extension cords to fit the type of equipment that you are using.
In a small shop, usually there isn't a need for an extra long cord and a medium size cord will be sufficient to get the job done. Consider the type of equipment that is used in the shop in order to determine the power of the cord and extension cord type that is needed. It is a good idea to buy a cord with a grounding feature to maintain safety in your shop.