Hi! Sorry for missing this note. The material is called galvanized pan sheeting and it most often used for large building construction for forming concrete floors and forms. Best to you and your project!
pouring the post to fit the steel must have required a lot of sawing. There are trim pieces to fit corigated roofing panels so using that and cinder blocks might be easier.
Michael Tebb Design
kathleen MK
kathleen MK