The basic structure of all canopy frames is the same. There are many different references for a canopy including the ones mentioned above. They are all basically the same and just may include some additional components. For example, A canopy usually comes complete with the frame, connectors, ties and tarp cover for the roof. A portable garage will also include all of the same elements as the canopy but will come with additional panels for the sides, front and back. This allows you to completely enclose the structure for winter storage. You can always contact us directly with any and all product questions.