[TQ29m]

You'll need to be more specific, my choice is always pre-painted aluminum, it's cheap, and it's light, and it holds up well, and more important, you can do it yourself, or take your panels to someone who has a shear, and have them do it, a 4'X10' sheet of pre-painted aluminum will cost you around 50 bucks, and should be enough for 2 sets of panels. Good luck! Bob