Hallowell’s Double-Tier Bulk Storage Lockers are a great place to keep large equipment and supplies. Employees can see what is stored inside the ventilated steel lockers without opening the doors. Add locker tops and backs for additional charges. Create a row of lockers by attaching this adder unit next to a starter unit. Please note: Adder units have only one side wall and won’t stand alone, so you’ll need to order a starter unit for each row of lockers.