What can I line a wooden rabbit hutch with?

Question:I'm thinking oif getting rabbits and was planning to get a metal one but I was told it could heat up in Summer which is really hot here in Australia so I was advised to get a wooden one but appently rabbits can chew any ledges that stick out. I read in a book that any ledges sticking out should be lined for insulation and to stop the gnawing but it didn't say what to line it with. What would I line it with and how would I go about it?

Answers:
we have are rabbit hutch lined with chicken wire. Make sure it the one that has small holes. There is different kinds.Chicken wire is the best because when they poop and pee it can go thought to the bottom of the cage and it keeps their cage clean.