A support apparatus having a base to support a support member which, in turn, supports a structure (e.g., a building joist, overhead structure, combinations thereof). The support apparatus may be used to provide reinforcement between a floor (e.g., ground, substrate, or the like) and the structure. The base of the support apparatus is in the form of a generally planar circular base, but may have any shape. The base may include one or more platforms, recesses, or ribs in order to provide structural support to the base and/or locations for one or more fastener apertures. The one or more fastener apertures are configured to receive one or more fasteners for operatively coupling the base to the floor in order to resist movement of the base during installation and/or use of the support apparatus.