The Stovebolt Site Forums The Parking Lot Panels 'N Burbs Panel and suburban differnces???

I have seen panels here on the west coast that have planks and runners, but I can't say I remember what make they were or where they were built. Whose panels have the plywood floors and where were they made? What make were they, is it possible that the GMC'S were made at one plant and used plywood and the chevy's were make in several plants and used both? Just wondering!