So, my carpenter friend and I have pretty much finished the 3 story rabbit condo for Boon and Phenom when they ar ready to move in together. They already love each other, Boon just needs his neuter in a couple of weeks. Because he is a carpenter, my friend made the structure primarily out of (safe, high quality aspen pine) wood, and then created tongue-in-groove slots to slide in the NIC cubes. The condo also has a peaked roof with shingles and a wind vane for decoration as it is an indoor condo.
However, since the structure itself is primarily made of wood, are there any great tricks or materials I can try to line these wooden areas with to chew-proof them?
Wish I had a photo, but the condo is in the carpenter friend's shop at the moment.