Technical terms for understanding

End stop

For separating cantilever arms. Prevents round materials from accidentally slipping off (storage regulation BGR 234 for round materials)



from the French word "agrafe", meaning "staple") Hook clock used for fastening a brace or beam to the upright section. The hook transfers the loads onto the upright section, and also reinforces the rack.



Racks are reinforced either with diagonals (cross bracing) or with lingitudinal reinforcers/beams. Diagonal braces are often used on shelving units. On pallet racks, reinforcement is provided by the structural forces of the beams.

Diagonal reinforcement

Reinforcing elements on the back of racks, consisting of diagonal bars. Diagonal reinforcing bars are used on shelving units and cantilever racks. This is a highly effective reinforcement method for supporting tensile forces.

DIBt - German Institute for Building Technology

The DIBt is the German accreditation body for construction products and types of construction.

For systems with an upper edge of load higher than 7.5 metres, most federal states classify pallet racks as special constructions. Therefore, operators who want to erect such facilities must in most cases submit a building application. There is a risk that racking systems cannot be put into operation over a longer period of time due to delays in inspection. This risk does not exist at META-Regalbau!

META-Regalbau was the first manufacturer to receive this approval from DIBt for its META MULTIPAL S pallet racking system. It permits the use of the pallet rack in the sense of the state building regulations and offers the building owners the possibility of use without approval in individual cases.


Connecting element between two racks. Used when assembling pallet racks, where it ensures a uniform gap between the different racks.


Double sided

Double-sided is a shelf that can be served from both sides. Here the shelves in the META CLIP system are placed on longitudinal ledgers so that diagonal bracing is no longer necessary. The floor can therefore be used from both sides.

Double line

One speaks of a double-line shelf when two rows of shelves are placed back to back and are connected to each other in such a way that they form a static unit. In contrast to the double-sided shelf, the diagonal braces are usually still included as bracing elements.

Push-through protection

Prevents unintentional pushing through of pallets. It is not intended to approach the push-through protection as a pallet stop as planned.

Compartment Height

Describes the distance from the upper edge of the hall floor / one shelf compartment to the upper edge of the next shelf compartment. This distance is also known as the kink length. If there is a greater distance between two shelf levels in the shelf, this is decisive for the static design of the shelf. The shelf height has a direct influence on the load-bearing capacity of a rack (→ Bay load).

Shelf Load

Shelf load is the load on a shelf level / shelf between two frames. The load should be evenly distributed over the entire surface. The sum of the shelf loads is the bay load.

Bay Load

Total carrying capacity of a rack bay. A bay is the area between two frames. The sum of the shelf loads on top of each other must not exceed the permissible bay load. The bay load is influenced by the compartment height.

Fixed Angel

For bracing purposes, they are installed in bolted shelving units at specified positions. The META fixed brackets consist of an angled sheet metal with integrated nuts, this facilitates the assembly enormously.

Galvanic zinc plating

In electrogalvanizing, the components to be galvanized are immersed in a metal salt solution of the protective metal (zinc) after prior cleaning with diluted acids. A current is then passed through the bath at low voltage. The electric current chemically breaks down the bath liquid. The metal (zinc) is separated from the salt and deposited in a thin layer on the components to be coated.

Clinched frames / shelves

Clinching is a pressure-joining process used at META for producing its QUICK frames. With this process, the upright parts are force-fitted to the linking bars/panel. In this way, the pre-assembled frames are made highly stable and robust. Unlike frames with bolted or riveted linking bars, there are no obstructions to the insertion of shelves at any point. This process is also being used increasingly in shelving production. It has significant environmental advantages over traditional welding.

Buckling length

see "compartment height"


Picking tray

On racks with tilted surfaces or roller strips, a picking tray is installed where the goods taken from the rack can be assembled.


Bracing beams

Bracing beams are angle sections with one agraffe on right and left. They are used to reinforce boltless racks at defined intervals. The shelf is inserted in the folded angle of the beam. The standard reinforcement is the diagonal brace.

Polypropylen (PP)

PP is resistant to almost all organic solvents and fats, as well as most acids and alkaline solutions. PP is odourless and gentle on the skin. It is suitable for applications in the foodstuffs and pharmaceutical sectors. It is physiologically harmless.

Powder coating

[Translate to English:] Die von META angebotene Kunststoffbeschichtung ist eine Pulverbeschichtung auf Epoxy-Polyesterbasis. Sie bietet eine optimale Abriebfestigkeit und höchstmögliche Oberflächengüte. Die Kunststoffbeschichtung gibt auch bei Lagerung von Lebensmitteln keine Stoffe ab, die gesundheitlich, geruchlich oder geschmacklich bedenklich wären. Das eingesetzte Beschichtungsverfahren ist absolut umweltverträglich. Es entstehen keine chemischen Abfallprodukte. Das beim Verfahren benötigte Wasser wird in einem Kreislauf-Reinigungsverfahren komplett aufbereitet. Es wird kein Schmutzwasser in die Kanalisation abgeleitet.


The raw material (steel) in the form of strips or sheets is cleaned by baking in a conveyor furnace, after which it is heat-treated, then passed through a bath of molten zinc. The desired amount of zinc coating is controlled and adjusted using the jet-stripping process. A crystalline structure forms as the zinc coat solidifies.


Locking pin

Locking pins have to be inserted to prevent accidental lifting of the beams in the pallet rack.

Adjusting screw

The adjusting screw on the cantilever arms (META MULTISTRONG L+M) is a type of lift lock. When the screw is tightened, it causes a plate with two teeth to be pressed into the upright section and against the cantilever arm itself. This raises the arm slightly. Round materials therefore roll toward the uprights and the arm cannot be lifted off accidentally.

Upright section

Vertical load bearing element, which is given its geometry by cold forming. It is joined to the load-bearing frame by connecting elements such as linking bars or C-section braces. On boltless racks, it is the shelves and brackets which are the connecting elements. The uprights transfer the bay load to the warehouse's load-bearing floor.

Depth/longitudinal supports

See "Supports". Longitudinal or depth supports are inserted, according to the shelf type.



Supports are used for various reasons: With shelves, they can increase the load capacity. In general, they prevent sagging of the shelves. With stepped beams, they prevent hollowing out of the beams when under load. If chipboards are inserted, they prevent sagging and therefore breakage of the boards.