I removed the rear seat from my 2003 Chevy Silverado extended cab. I am currently in the process of building a raised floor, so I will have a flat surface the width of the truck. I plan on building storage boxes that pull out from underneath the floor. I used 1/2" treated decking for the floor surface. The treated wood has that greenish look to it. Can I sand this down and stain the wood or would I be better off covering it with indoor/outdoor carpet? Any comments or help on this project would be appreciated.