Is the lid plastic in anyway? It looks like maybe it’s around trim of lid? If so, can you get a replacement door if something happens to the lid?

Thank you for your interest in our products. The door is galvanized steel and the trim is plastic. This item does not have replacement doors. There are replacement door pin should they need to be replaced. This item has a 3 year warranty. Should the trim should break, it would be fully replaced.