A storage cart for supporting a backboard assembly during replacement and storage is provided, which may also be used in combination with a quick change coupling system to permit the quick removal and replacement of the backboard assembly. The storage cart can include a frame, a carrier unit and a lifting mechanism. The frame includes a base, a top, and upright support members interconnecting the base and top. The base depth can be greater than the top depth to form a taper, permitting a backboard assembly to lean against the frame. The carrier unit includes a shelf sized to support the backboard assembly. The lifting mechanism includes means for adjusting the vertical position of the shelf to (dis)engage the shelf with the backboard assembly. The storage cart can include wheels, where the storage cart can be easily moved through a standard sized door and into its suitable position.