I've converted wine boxes and cutlery boxes into humidors, even a tea box. All of em worked great while I had em. Only thing worries me is that flush fit lid, hard to get a good seal when it's flush, not impossible tho. It's just a lot easier when the lid has a lip. You make the Spanish cedar lining protrude enough to match the one in the lid. I guess with this bench you're lining in the lid will have to fit flush to the inside of your bottom lining. Will make a really cool humidor if you pull it off.