I want to build a rail for my back yard and need some suggestions on building one. Like what is the best material to use are (metal, pvc pipe, ect.) ? If I use metal is there anything I need to do with it? Where can you get poly slide material that is used on boxes? I don’t get much snow where I live so is using Astroturf or carpet on a steep drop in a good alternative when there is no snow? By the way I have all the materials necessary to build the rail because I have a race shop with ever tool you can imagine. Thanks for the help !