Our stylish, functional, heavy duty Whitney Plus cabinets are crafted in beautiful ¾-inch birch plywood and 1/4-inch birch plywood back panels, not cheaper MDF or particle board. The interior and exterior of the cabinet back panel is stained to coordinate with all other pieces in our award-winning Whitney Plus Collection [each piece sold separately] so you can design and furnish an exceptionally coordinated Early Learning environment. Made in USA. GreenGuard™ Gold certified. Lifetime Warranty.