• DDBM - Bycycle Parketing Den Hague The Netherlands cladding expanded metal

Bicycle storage, The Hague

MD Expanded metal

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MD Expanded metal

MD Expanded metal is made by cutting a regular pattern of slits into a metal plate and reshaping it. It can be used to create a more transparent facade by making diamond-shaped or circular openings in the plate. MD Expanded metal is also an economical product since no material is wasted in its production.

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Popular patterns

The diagonals and the strand widths are available in endless combinations, making MD Expanded metal a highly versatile product. It always has a unique appearance and is suitable for many different applications.

This is just a selection of the possibilities that MD Expanded metal can offer. These are patterns we have previously used in our projects.


Fastening systems

We work around your design, functionality requirements and available budget when choosing a fastening system. Our engineers have a wealth of experience and we have a wide range of fastening systems for use in projects.

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For our projects, we offer MD Expanded metal in steel, aluminum, copper, and corten steel.


Steel is the best choice for heavy construction projects, such as fences in school areas or crowded public places. It is also ideal for other structures that require high durability. Steel is more rigid and therefore stronger.


Aluminum has many advantages. It is:

  • low maintenance. The smooth and shiny finish does not attract dust and sand.
  • light, making it easier to fix into place, and the construction has less weight to support.
  • durable, with a long service life. Aluminum is unaffected by UV rays or moisture and does not corrode or twist.
  • environmentally friendly because aluminum is 100% recyclable. Also, recycling is not an energy-intensive process.
Corten steel

Corten, or weather-resistant steel, is an alloy of copper and chrome. This gives a higher level of resistance to atmospheric weathering compared to other unalloyed steel panels.

The alloy creates an oxidized 'rust look' layer that actually protects the panels when exposed to the elements. The protective layer of corten also continues to evolve and responds to pollutants in the atmosphere over time.

Corten steel is harder than steel or aluminum, which makes processing more expensive. However, it does mean that the steel requires no further surface treatment, which can mean a significant overall cost reduction.

It's also possible to achieve a corten steel 'look' with powder coated aluminum. With this method colours are mixed and layered to match the required corten colour.


Copper is a quality product that gives a facade a distinctive appearance. Once installed and exposed to the air and precipitation, an impermeable oxide layer is formed that changes over time from deep brown to patina green. This oxide layer protects the copper directly from the elements.

If a copper facade has to be green on installation, we apply pre-patinated copper by applying a chemical mix to the metal, creating the green patina layer.

Copper has disadvantages in its high price and that it is soft compared to other materials. We can get around this by treating aluminum or steel with a special powder coating that imitates the copper or weathered green patina colour.


Surface treatments

The finishing of the material is determined by the location of a project, the likely weather effects and the vision of the designer. It is possible to powder coat, anodize or galvanize MD Expanded metal. Therefore the panels are protected against corrosion, wastage and chemical damage. And of course, it determines the final appearance of a building.

Jurren Zomer
Nafthali van der Toorn

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Our experienced and dedicated team is ready to guide every project to a successful conclusion. Our unique approach ensures the best possible results. Call us on +31 38 331 8181 or email calculatie@metadecor.nl.

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