Metalware:•Interlok no bolt steel shelves•Easy to assemble and reconfigure•Designed for maximum strength and durability E Z Rect Heavy Duty:•No special tools required•Adjustable on 2” centres•Easy to assemble and reconfigure•Shelf widths starting at 36” up to 96”•Hand loaded and hand stack operations•Use with particle board shelves / wire mesh decks E Z Rect Medium Duty:•Adjustable on 1” centres•Shelf widths starting at 36” up to 72”•Smaller in size and capacity vs. E Z Rect HD Garment Hanging:•Can be used in combination with E Z Rect HD / MD shelving systems Wide Span Heavy Duty:•Commonly referred to as Baby Rack•Use with wire mesh decks / galvanized metal panels / particle board shelves•Designed for heavier load capacities where conventional shelving is too light Plastic Parts Bins:•Can be used with any of the above shelving systems.