It really is not that complicated -James E. Tew

A beehive is not very complicated. Handy craftsmen frequently build their own in their home shop. Essentially, the common hive requires an outer cover – or simply a roof. Directly beneath that rooftop is an inner cover that is primarily used to prevent bees from soundly gluing the roof to the top edges of the hive box immediately beneath it.  An inner cover is not absolutely necessary, but it is a very useful piece of equipment. Beneath the inner cover is an assemblage of supers and hive bodies that is determined by the annual season.  Some beekeepers use a queen excluding device to restrict the queen to the brood chamber(s). During the spring season, something like two supers and two hive bodies would be common in a typical hive.  Beneath all the various boxes that are being used, a bottom board provides the landing platform for bees and gives a bottom for the hive. Generally a hive stand supports the entire beehive infrastructure. (Hive Diagram from Skinner, Parkman, Studer, and Williams. 20041)

via Equipment Requirements for the First-Time Beekeeper — BEEKeeping: Your First Three Years