This Jonti-Craft Stacking ECONOMY Lockable Locker is made of eleven ply 5/8" Baltic Birch plywood construction; that's construction for a locker that lasts and lasts! This Economy Locker comes “ready to assemble” thereby slashing shipping costs and making this cubby more affordable. The Stacking Open Locker is a great place for kids to get organized! Order the Stacking Economy Lockable Locker today! Expect a more organized and efficient tomorrow!