It has good directions for making a pet bunny cage.
I personally would never use wood that had not been covered for an indoor rabbit house. Rabbits pee. And wood + Rabbit Pee is REALLY not a good combination. This cage might work well for a totally reliable litter trained rabbit, but for anything else, the untreated wood could get very messy and smelly quite quickly.
I would also be inclined to put the wire sections INSIDE the frame instead of outside so the buns couldn't chew on the wood requiring it's replacement. But overall it seems like a good set up for most pet bunnies.