Bogo
FOOF
I was also concerned as I approach the finish of this thing and it approaches it's final weight that the suspension could compress enough on a bump where the tires would come in contact with the underside of the floor. If this happened, it could remove the finish on the wood, thus exposing raw wood and having the potential for water damage. So I had some stainless sheet metal kicking around the shop that I cut up and buttoned on the underside of the floor above the tires. This way if such a compression were to happen, it'll polish a little stainless rather than damage the camper.
Road gravel picked up by the tires will also cut into exposed wood.