I have some metal roof panels we got for free that I want to use on a small coop we're building. I'll say up front I really don't know what I'm doing, but I'm trying to figure it out Is it a good idea to have plywood or some other underlayment under the panels? How do I finish off the edges? I imagine they are going to be pretty sharp. This coop won't be very tall or very high off the ground (broody/silkie coop), so those edges are going to be bumped into I'm sure. Is there a way to use this for the top hinged lid of a nest box too? I could always use wood, but it would be nice if it matched. Any tips or pictures of this? Any tips on cutting them? Thanks in advance for any help!