We have a rabbit hutch that my daughter and I built around the year 1992. It stood outside until five years ago, so approximately 20 years.
Plywood, painted with simple outdoor paint, and it is like new. Although now it stands under a roof and serves as a nesting and brooding chamber for our hens
This is how it looks now. It's inside the chicken coop, actually a small stable.
The boards on one door are to create peace and shade for the chickens; we had the cage outside at first.
Very thin with paint. Inside there's a piece of wet room rug now.
Maybe it's good to have a loose mat or "canvas paper," which can be easily replaced,
for hygiene reasons.
