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Post Boxes | Letter Boxes | Mailboxes | Post Boxes UK

B380 High Capacity Mailbox Letterbox Postbox

B380 High Capacity Mailbox Letterbox Postbox

The model B380 is a high capacity mailbox ideal for high density developments and commercial office space. Conforming to EN13724 (accepts A4 post, anti-pilfer baffle to aperture) and Secured By Design's New Homes Guide 2014 (section 24.6), it is also Royal Mail approved. Available in a range of 16 standard RAL finishes (100% polyester powder coated) or to any other RAL finish of choice for a modest uplift. Also simulated brushed (satin) stainless steel finish, it comes with a high security cylinder (2000 differs).

It has dimensions of 380mm width, 175mm height and 270mm depth, and is a front-entry front-retrieval unit (in-front, out-front). It complies with Secured By Design requirements (sections 21.19 and 24.6) and can be specified with an integral fire extinguisher.

The model B380 is designed to be incorporated into a bank of multiple letterboxes. It can be positioned both internally and externally with a choice of different casings, surrounds and support legs.


  • Horizontal high capacity mailbox suitable for internal or external use, either wall mounted, wall recessed, or free standing on support legs.
  • Dimensions per unit: 380 x 175 x 270mm (width, height, depth).
  • Aperture size: 360 x 35mm. Conforms to EN13274:2013 (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 / fire proof compatible.
  • Mailbox body and door manufactured from aluminium.
  • Each mailbox comes complete with 2 keys (2000 differs). Additional mailbox keys available at time of order only.
  • Also available in any RAL colour of choice – please see our RAL colour chart.
  • Secure postbox, with 1.7mm thick aluminium doors, high quality Eurolock lock and extra wide security flap to inner aperture.
  • Numbering and lettering to flap can be specified for an additional charge.
  • Choice of surrounds and support legs depending upon type of application.
  • Hinged at top, top opening.
  • Post Boxes UK recommends a maximum single unit bank size of 30 multiple mailboxes in an five wide six high configuration (5w 6h). 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 B380 high capacity mailbox 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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