Door Side Panel Mailboxes

Mailbox systems of this type visually enlarge the entrance without physically taking up space. The result is a similar enhancement of the entrance to the house to that achieved with a wall opening directly next to the front door.

Door-side mailbox systems are particularly popular in residential buildings. Some of their main advantages: high security, no noise pollution, no entry into the building by delivery staff and built-in thermal insulation. They are also ideal for combining with doorbell panels and communication systems.

Door side panel mailbox systems individually configured

Configure your door side panel mailbox system according to your personal requirements! You can choose from a wide range of components. We can also integrate your own modules such as cameras, displays or other devices on request. Please contact us personally. You can choose from

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Mailboxes
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Panels
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Door Bells
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Flaps
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Locks
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A century and a half of quality at the highest level

KNOBLOCH has been family-owned for more than 150 years. Today, around 200 employees use modern technology to manufacture mailboxes, mailbox systems and accessories as well as other high-quality products for entrance areas both at our old site and at the new KNOBLOCH City in the industrial estate in Döbeln.

KNOBLOCH: Your expert for mailbox systems

Mailboxes in
over 200 colours

At KNOBLOCH, you can choose from over 200 colours – or specify your desired colour as a RAL colour code. We also offer premium surfaces for an even more attractive look.

Design mailboxes.
From simple to premium.

Our range of mailboxes extends from simple and functional to luxurious and playful premium. The look of your mailbox system is entirely up to you.

Fast delivery
to your home

We deliver your new individual mailbox in as little as 10 working days. For mailbox systems with customised configurations, we only need a few days longer.

Simple assembly
with our support

KNOBLOCH systems are supplied with detailed and easy-to-understand documentation of the individual steps. They are usually fully assembled within a few hours.

155 years of innovation
and tradition

With over 150 years of history, KNOBLOCH is the oldest mailbox company in Germany, which is why we can give you a double promise with a clear conscience: you will never hear ‘we’ve never heard that before’ from us, and spare parts for your system will still be available in 10 or 20 years’ time.

Quality und Service
Made in Germany

At KNOBLOCH you have direct contact with the manufacturer and the design department. This is rarely possible with suppliers from the Far East.

Pictures of door side panel mailbox systems

Door side panel mailbox systems. Briefly explained.

What is a door side panel mailbox system?

A door side panel mailbox system is a mail receiving system that is integrated directly next to or into the side panel of an entrance door. This means that the mailbox is part of the door frame or the neighbouring glass element and therefore blends in perfectly with the entrance situation. This type of installation is equally suitable for apartment blocks and commercial properties.

  • Space-saving solution – the system utilises the existing area next to the door without taking up additional space
  • Extended functionality – in terms of both function and appearance, a door side panel mailbox system is the ideal place for doorbells and communication systems, which are housed together with the letterboxes in one body
  • Tidy appearance – thanks to integration into the door side panel, a uniform, harmonious appearance is created
  • Easy accessibility – delivery staff can easily fill the system from outside without having to enter the building (and ring the doorbell)
  • Accessibility – installation at a suitable height also enables easy access for people with limited mobility

Door side panel systems have a front on the outside of the building, which is why robust, weather-resistant materials are required. KNOBLOCH uses stainless steel here:

  • Stainless steel – durable, modern and rust-resistant
  • Aluminium – lightweight and corrosion-resistant
  • Powder-coated sheet steel – versatile in colour design and robust. KNOBLOCH uses a high-quality passivation (galvanisation) for sheet steel for reasons of corrosion resistance
  • Plastic – lightweight, corrosion-resistant and cost-effective, but less resilient than the other materials, both mechanically and to weathering. KNOBLOCH therefore uses plastic in mailbox systems almost exclusively for nameplates

KNOBLOCH mailbox systems have an excellent price/performance ratio because the compartments are used as standardised basic components in a large number of different designs and are therefore produced in comparatively large quantities. However, this does not mean a limitation, quite the opposite. They can be customised to your personal requirements:

  • Size of the flaps and compartments
  • Number and arrangement of compartments
    Colour of the compartments and colour of the flaps
  • Type of flaps (from simple to noise-damped to flat design)
  • Additional functions: Integration of bell systems and parcel lockers as well as functional boxes with (almost) any content, from door openers for wheelchair users to access controls
  • Design: Modern, classic or according to special architectural requirements

Tip: Use our mailbox configurator to plan your perfect mailbox system conveniently and at your own pace. You will then receive a free quote and personalised advice from us.

This type of installation places the highest demands, so close coordination between the door manufacturer and the installation company is an absolute must. The basic steps are

  • Determine the glass dimensions/front panel dimensions – this is an essential step that should always be carried out by a specialist (window manufacturer)
  • Insert the front panel into the door profile – including fixing it with glazing beads.
  • Particularly with thermally insulated façades, care must be taken here to avoid thermal bridges
  • Installing the system – this essentially consists of hanging the box block, which is attached to the front panel, secured with locking plates and finally screwed in place

KNOBLOCH always supplies mailbox systems with a link to detailed installation instructions, which can be conveniently accessed via QR code and should also be read thoroughly by you as the customer. However, you should only install door side panel systems yourself in exceptional cases – partly because subsequent corrections are not so easy to make with an additional dowel or trowel of plaster.

KNOBLOCH offers its own installation service – just ask us.

Yes, high-quality systems offer protection against theft and vandalism – and the door side panel systems from KNOBLOCH even fall into protection class RC2, which means they are just as resistant as a solid front door. The key points are

  • Integration into the door environment – simplifies the implementation of a standardised security concept, for example with webcams
  • Locking systems – robust locks
  • Material strength – resistant constructions that make it difficult to break open
  • Weather protection – seals and rain edges protect the mail from rain and snow

Of course, we can only speak for KNOBLOCH at this point – and here the answer is a resounding yes. This applies not only to the materials used:

  • Corrosion protection through stainless steel, anodised aluminium and galvanised, powder-coated sheet steel
  • UV resistance: we only use colours and surface treatments that will not fade over decades
  • Rain protection: special designs and seals prevent water from penetrating the compartments
  • Detached and semi-detached houses – with (strong) visual enhancement of the house entrance, if required with extended functionality (doorbells, communication system)
  • Apartment blocks – centralised mail reception for several parties in a shared entrance area; doorbells and communication systems are almost standard here
  • Commercial properties – professional appearance and convenient access for customers and suppliers
  • Public institutions – schools, administrations or clinics with a prestigious entrance area and high security requirements

The European standard DIN EN 13724 specifies the requirements for size, weather protection and safety. The key points:

  • Size of the insertion slots – so that magazines and large letters can also be handed over uncrumpled
  • Accessibility – also for people of small stature, possibly for wheelchair users
  • Protection against unauthorised access and vandalism

For KNOBLOCH systems, the necessary or sensible maintenance is limited to a few points:

  • Regular cleaning – with a soft cloth and mild detergent
  • Polishes – there are special care products for stainless steel and aluminium that can be used a few times a year
  • Function check – is recommended for locks and seals at longer intervals

The cost of a door-side mailbox system depends on the material, size and features:

  • Small systems: From approx. 150-300 euros
  • Medium-sized systems: Between 500-1,500 euros
  • Large, customised systems: 2,000 euros and more

KNOBLOCH also relies on a modular system with standardised letterbox compartments for door side panel systems. This enables customised solutions for different budgets – always with high quality standards and a long service life.

Configure or buy directly​

Mailbox system configurator
Mailbox system online shop