What is a Cantilever Rack?
Quite simply, a cantilever is a beam anchored at only one end. Cantilever Rack, sometimes called pipe rack or lumber rack is typically used for storing long, narrow items. Furniture rack is a type of cantilever rack that has decking added to provide storage similar to pallet racking, but with a full clear shelf that can be loaded from the front without obstruction from rack support uprights. This is excellent for the storage and retrieval of large, bulky items such as furniture and mattresses.
Cantilever Rack, available in roll-formed steel and structural steel, is composed of horizontal load carrying arms extending from vertical columns or uprights. The lack of a vertical support on the ends of the arms permits uninterrupted storage of long lengths of material. Like pallet rack, cantilever can be connected to create rows of storage.
The upright columns of the cantilever racking system are the primary structural components and are available as single or double-sided. Bases are often sold separately, with the base length determined by the arm length and the weight load.
Like pallet rack beams, cantilever arms make up the shelf levels and are usually adjustable to create levels at the desired heights. Arms can be straight or inclined–the straight arms are generally used for storing stable loads such as lumber and sheet metal; inclined arms are generally used for cylindrical objects or loads that tend to roll, such as pipes. Some manufacturers offer an optional lip that attaches to the end of the arm to prevent loads from rolling off the rack.
Horizontal braces go between the upright columns to stabilize the rack system. They are sold in sets rather than individually and are either straight braces or X braces. The X braces are used to increase the stability of taller rack, usually over 15 feet tall. The number of sets needed is determined by the upright height.
Configuring cantilever rack: It is best to contact a material handling professional to help you configure your cantilever rack system, but you will need to know the length, depth, height and weight of the products being stored. To determine the number of arms needed to safely hold the load being stored, there is a simple test you can do to ensure you have enough arms to prevent load deflection. Place your load on two evenly spaced wooden blocks (to represent the arms)* and if no deflection is present, a two arm system will suffice. If there is too much deflection, add a third block and so on, until there is no deflection.
*The load should overhang the end arms by one-half the distance from upright center-line to upright center-line.
You also need to know your ceiling height and lift truck reach for determining the maximum height of your cantilever rack. And don’t forget to include information about anything that could interfere with the rack, such as sprinklers and lighting.
Next Level produces roll formed and structural steel cantilever rack that can withstand the toughest environments and applications.
For more information about Next Level material handling products, visit our website.