Finish A - OUTER-RADI WALL OPTION 2a/b - HORIZONTAL CORRUGATED -COLD ROLLED BARE- METAL Rusted Corrugated Roofing/Siding panel. This product paired with perforated version of same material and profile. I have a supplier contact info and a per square foot cost estimate. See cladding board for examples. This option is a bit cheaper and a product that will not weather quite as well as corten. (however, in a horizonal orientation, probably not a huge difference)
