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Post Boxes | Letter Boxes | Mailboxes | Post Boxes UK

i345 1 Mailbox Letterbox Post Box

i345 1 Mailbox Letterbox Post Box

The model i345-1 multi unit mailbox is a more contemporary style of apartment unit. It's simplicity and clean lines are perfect for those looking to achieve an uncluttered look to their bank of mailboxes.

Best suited to larger lobby areas in which a focal point is to be achieved - its width lending itself well to landscape style banks of mailboxes. It is suitable for both small scale apartment and flat projects and the largest of multi-use developments.





The i345-1 mailbox has dimensions of 345mm width, 135mm height and depth of 250mm. A popular unit it has become an industry standard across Europe for high density residential schemes and commercial office developments. It is a front-entry front-retrieval unit (in-front, out-front) and conforms to EN13724 (accepts A4 mail without having to fold or bend the post, has anti-theft baffle to aperture) and is Royal Mail approved. It also complies withSecured By Design's New Homes Guide 2014, sections 21.19 and 24.6.

The model i345-1 is designed to be built into larger banks of mailboxes - typically, from small banks of 6 units up to larger banks of 300+ units. The i345-1 mailbox is most suited to large scale city centre residential schemes and student accommodation.

It is available in any RAL finish, 15 of which are standard stock finishes.. Non-stock finishes incur a surcharge for small orders. It also come in satin (brushed) stainless steel.

Suitable for both internal and external use with a choice of different casings, surrounds and support legs.

The model i345-1 multi unit mailbox can be fitted with an internal fire extinguisher which operates at a temperature of 70 degrees Celsius inside the post box. This is a much more economical solution than specifying a bank of fire rated letter boxes.


  • Horizontal multi unit mailbox suitable for internal or external use, either wall mounted, wall recessed, or free standing on support legs.
  • Dimensions per unit: 345 x 135 x 250mm (width, height, depth).
  • Aperture size: 325 x 35mm. Conforms to EN 13274 (accepts A4 envelope without having to fold or bend; anti-theft flap to inner aperture).
  • Manufactured and bank-assembled in Europe.
  • Secured By Design compliant, New Homes Guide 2014 sections 21.19 and 24.6.
  • Anti arson mailbox / fire proof compatible.
  • Mailbox body, door and flap manufactured from stee.
  • Each post box comes complete with 2 keys (2000 differs). Additional mailbox keys available at time of order only.
  • Secure postbox, with 1.2mm thick steel doors, high security Eurolock cylinder lock and extra wide anti-pilfer baffle flap to inner aperture.
  • Hinged to right, side opening.
  • Available in any RAL colour of choice – please see our RAL colour chartAlso available in satin (brushed) stainless steel.
  • Numbering and lettering to flap can be specified for an additional charge.
  • Choice of surrounds and support legs depending upon type of application.
  • Post Boxes UK recommends a maximum bank size of 50 multi unit mailboxes in a five wide ten high configuration (5w 10h). Should you wish to specify a larger bank size than this, please call us on +44 (0)121 288 0838 to discuss.


Should you require any further information regarding i345-1 multi unit mailboxes or wish to discuss your enquiry, please call Post Boxes UK today on +44 (0)121 288 0838. Alternatively, your enquiry can be emailed to and where possible, we would that drawings be sent in pdf format. Thank you.

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