Shop for Building Materials at The Home Depot. These shelves are truly unique in design and function. Primarily used in decorative applications urethane shelves can make a dramatic difference in kitchens, bathrooms, entryways, fireplace surrounds and more. This material is also perfect for exterior applications. It will not rot or crack and is impervious to insect manifestations. It comes to you factory primed and ready for your paint, faux finish, gel stain, marbleizing and more. With these shelves, you are only limited by your imagination.