The 8.2 foot high stackable bike locker unit provides both users and administrators with many benefits This design helps to provide the maximum amount of bicycle parking while only taking up a limited amount of space. The lockers from American Bicycle Security Co. are also constructed out of fiberglass reinforced plastic, rather than metal, so administrators don't have to worry about the lockers rotting out, rusting or heating up because of the elements. the lockers feature a crowned roof that allows water to run off and not pool on the top of the lower unit or inside the bottom of the upper unit. Users can be confident that their bikes will be totally protected and will not rust.