A solar panel support structure includes a first shelf for supporting a first frame section of a first solar panel module, the first shelf defining a first plane, and a second shelf for supporting a second frame section of a second solar panel module, the second shelf defining a second plane. A dividing structure is provided between the first and second shelves and extends above the first and second planes. A first shelf upturn may be provided at an end of the first shelf away from the dividing structure and extending above the first plane. A second shelf upturn may be provided at an end of the second shelf away from the dividing structure and extending above the second plane. The support structure includes one or more first movable lock tabs for engaging first and second bottom flange portions of the frame sections.