Perforation to perfection

Read more about how we can help you with your perforation tasks!

Welcome to Dan-How

Reputable specialist in perforation

Dan-How Perforation ApS has over 44 years of experience with microperforation of pre-coated steel and aluminum. Our production is modern, automated and based on continuous perforation of coils with specially designed tools. With a specialization in microperforation, we can meet your specific requirements for your next perforation task. We stand ready to help you.

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Learn more about perforation

There are many choices to make when choosing a perforation job.

Therefore, below you can find answers to everything you need to know to get started!

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Get to know Dan-How

We, at Dan-How, specialize in microperforation. Do you want to get to know us better? You can read more about us here.

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Free material samples

Not sure what type of perforation is best for you? We stand ready to advice and assist you. You can also order free material samples before you decide on your perforation job. 

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Watch our video on how a perforation process takes place

Our machines work automatically, independently and precisely, so that the amount of waste material is minimized.

In the video you can see how a perforation is performed with us.

If you have questions regarding the process, choice of materials or something completely different, please contact us. Our skilled specialists are on hand to help you.

A look behind the scenes



Metalcolor – Schweiz
For many years Metalcolor SA and Dan-How Perforation ApS have been collaborating.
For Metalcolor, Dan-How is a very reliable partner and in our opinion the best in the field.
Customers are delivered with Swiss quality pre-painted aluminium coils in an infinite range
of colours, coated by Metalcolor, with precise micro-perforation performed by Dan-How.


Servis Climax a.s. – Tjekkiet
Climax is working with Dan-How Perforation already for ages and all the time we are more
than happy to have such a reliable supplier. It is always important to have precise deliveries
in means of quality and time and Dan-How is matching those needs perfectly


Metalpaint AG - Schweiz
We appreciate your support and your collaboration with Metal Paint
and we are convinced they will be a good relationship.


HAUFE-Deckensysteme GmbH-Tyskland
Als Hersteller von Deckensystemen arbeiten wir seit gut 10 Jahren mit der Firma Dan-How eng zusammen,
die für uns die Bänder unserer Lamellendecken mikroperforiert. Um die Qualität unserer Systeme auf einem
gleichbleibenden hohen Niveau zu halten ist es für uns wichtig, dass der vereinbarte Qualitätsanspruch an
Lochung und Richtqualität verbindlich eingehalten wird. Ebenso müssen wir durch die Objektarbeit Liefertermine
verbindlich einhalten und oft auch sehr kurzfristige Lieferungen realisieren. Die Firma Dan How hat uns hier immer
voll unterstützt und stehts pünktlich die geforderte Qualität geliefert. Wir schätzen diese Zuverlässigkeit und die
immer freundliche Zusammenarbeit, auf die wir hoffentlich auch zukünftig setzen können. Herzlichen Dank
vom gesamten Team der HAUFE Deckensysteme GmbH.


Svenska Westaflex AB - Sverige
I snart 10 år har vi skickat vårt material för perforering till Dan-How Perforation, och vi är
väldigt nöjda att ha dom som leverantör. Kompetenta och väldigt trevliga. Rekommenderas starkt.

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