Thanks for the complements everyone.
Nick, I highly recommend using the metal. Under the car is a drain, so I use this as a wash bay just to get out of the sun or cold during the winter months. Its great also for when you want to clean the floors, any water that splashes on the wall just rolls right off the metal. This is my second garage with the metal and any future garages will be done the same.
I haven't tried that yet, but will. Thanks for the recommendation.