Well I couldn't find any cheap mailboxes that weren't galvanized steel and decided to play it safe and just get a cheap metal toolbox instead. My other dilemma was that my Home Depot only had 4" tubing but that was quickly solved by a reducer on each end. A big thanks to the person that posted the how to video (sorry I don't remember the name) because the tip about the pipe clamp was a huge help. I also used another tip I read about putting binder clips under the tray to get a little more air under it. We also drilled 4 holes in each end to increase the ventilation. I'll post and update on how it worked as soon as I get to try it out. Thanks to everyone for all the great post and tips which are really helpful to this newbie [emoji]128522[/emoji]
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