I guess I was on a roll after the solar project as I continued to look for an additional project to use up some of the materials that has been collected over the years. The largest being the 4'X8' & 4'X10' AIRLIGHT building panels from Wanessa-Sue Inc. that are the same construction as the ones used for the caboose project, posted a few years ago.  The RV Shelter is completely home made from 2' heavy wall conduit for posts and trusses, 2x4's, and Home Depot metal siding and roof panels. The side and end wall have been insulated with 5 1/2" panels that were free from Wanessa-Sue as they were flawed and not sellable. The existing mezzine is 20' wide by 8' deep built in 2007 that has been used for storage and car restoration projects. The concrete slab is 20' X 10' and we were going to extend it 20' but decided the cost was too much. A Laser level was used to get the elevation level correct for the 10'exrension to the next 2' p...