Hey there, doing a budget build with 3/4 in plywood. I've read that aluminum sheet metal is a good option for the outside of the trailer, but am coming up empty on where to acquire it. My build is 4'x6'x4" if that helps at all.
Are there more budget friendly options for aluminum or alternatives that work alright (used metal roofing maybe)? Rain is a concern where I live.
Also, is there a minimum thickness that is recommended?