About the shelf extender

Portal shelving system is very flexible and can be combined in many ways. The longest shelf measures 201-244 cm, and its length determines the total width of your shelf. If you need a wider shelf, simply extend it with a shelf extender, allowing two shelves to share a single shelf ladder.

There are two scenarios

Our shelves extend from one outer edge to the other. When two shelves share a shelf ladder, you have two options:

Slightly shift the outer shelf ladders, as shown in scenario 1. Allow both shelves to protrude 1 cm on each side, as in scenario 2.

In both cases, the two shelves rest on the shelf extension and are secured from below. Make sure to always center the shelf extender on the shelf ladder.

Scenario 1:

Shelves with parallel widths, for instance, 158 cm + 80 cm shelves.

When your shelves have consistent widths throughout the shelving system, it will increase the total width by 2 cm, by aligning the outer shelf ladders with the shelves. Keep in mind that this change also affects the available space for cabinets and drawers.

Scenario 2:

Shelf with mixed shelves  / different widths on the shelves, for instance, 158 cm + 80 cm shelves.

When using mixed shelves with different widths, it’s important to maintain the 80 cm and 45 cm sections between the shelf ladders. This ensures stability and prevents shorter shelves from not fitting in the shelf sections. Consequently, shelves with the shelf extender will protrude by 1 cm on each side.

Please contact us if you have any questions. You can reach us at hello@tonnfurniture, 08-39 65 10, through our chat or in our showroom.


We help you plan your Portal shelf

Adapt the Portal shelf to your home. Fill in desired width, height and color in our Portal planner. We’ll get back to you with a sketch and price.

When you are satisfied, we’ll send you a shopping cart with all parts for your shelf ready to be ordered. The service is free of charge, of course!

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