steel shelving systems lockers modular buildings STEEL SHELVING SYSTEMS -- Federal Steel Equipment Galvanized steel shelving systems & slotted Angle are available in many sizes and capacities quick delivery on most sizes. Heavy duty slotted angle shelving units. Available up to 24" deep and 144" high, 36" to 60" long. Galvanized steel shelving systems make maintenance and cleaning a simple task. Closed type steel shelving systems provide economical storage with closed sides and backs to keep material contained in the units. All steel shelving systems are equipped with shelves that are completely adjustable on 2" centers, with a capacity of up to 600 lbs. per shelf. All shelves easily adjusted with "shelf clip", no nuts or bolts needed. Units can be ordered in starter and add-on units. All steel shelving systems are shipped knocked down, installation services available.