Heavy-gauge steel with tamperproof hinges. Vertical louvers provide ventilation. Full-length door stiffeners add rigidity and deaden sound when opening/closing. Padlock hasp on each door. Includes number plates for locker identification. Shown with two optional bases, (TNN110355), sold separately, which raise lockers 6" off floor for easier access to bottom units. Multiple rows of lockers can be ganged with standard nuts and bolts (not included). Space efficient design features two six-compartment vertical units, one four-compartment horizontal unit and 48" wide coat bar. Each compartment: 12w x 18d x 12h. Overall 72w x 72h. Shpg. wt. 189 lbs. (Cannot ship UPS.)