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The HR360-1 rear access horizontal letterbox can be installed into any door panel or cavity wall to create a built-in mail delivery system for apartment blocks, offices, and retail parks. Measuring some 360 x 110 x 255mm (width, height, depth), it can easily accept larger documents and A4 size envelopes without having to fold for delivery, and it has a generous total capacity of just over 10 litres. For through-wall installations, the HR360-1 is supplied with a 2mm aluminium panel.

    The HR360-1 rear retrieval letterbox was made for banking. Typical installations include anything from 6 to 30 units, although there are no limits on design, and we can easily produce banks of 60+ units upon request.

    For post bank installations of any size, choose the Post Boxes UK integrated service, which includes everything from design and schematic drawings through to delivery. Contact us to discuss your mailbox requirements.


    As a front entry rear access postbox, the HR360-1 can be installed into any cavity wall to create a secure mail receptacle. It is also suitable for double-glazed applications, such as shop fronts and door panels, where it will make a stylish addition to any glazed façade.


    To ensure seamless integration into any internal lobby or shop front display, the HR360-1 horizontal mailbox is offered in any RAL colour. Class 0 fire retardant finishes are also available upon request.


    Standard lead-time for the HR360-1 multiple-occupancy mailbox is 4 weeks from order confirmation. Larger projects may require additional turn-around time, and smaller orders may be delivered sooner. We will provide you with an estimated delivery date on receipt of your order. Please contact us.

SKU: HR360-1

  • Material
  • Support Legs
  • Numbering / Identificiation
  • Locking Options
  • Replacement Keys / Locks
  • Security
  • Model Range

As with all the high-spec mailboxes in our in-front out-back collection, the HR360-1 postbox is constructed in electro-galvanised steel and available with stainless steel or powder coated polyester font plates.

The HR360-1 horizontal postbox can be ordered with or without numbering, apartment ID codes, and nameplate inserts. Simply choose the Post Boxes UK engraving service to personalise the letter box flap and internal door with your chosen text.

Fully lockable to prevent tampering and unauthorised entry, the HR360-1 apartment block letterbox comes with a non-mastered Eurolock cam lock as standard.

As the HR360-1 secure letter box is most commonly specified for shared installations, Post Boxes UK offers replacement keys and replacement locks for this high-occupancy mailbox model. We can supply any number of spare keys and offer discounts on bulk orders.

The HR360-1 is an EN13724 letterbox, and as such, it includes the very latest security features and includes an anti-fishing device to prevent post-theft via the aperture.

An integrated intercom system including housing, speaker grille, and buttons is available for the HR360-1 postbox. Existing intercom housing and CCTV video camera units can be integrated into the front plate upon request. Please contact us to discuss your requirements.

The HR360-1 dual access letterbox is suitable for a wide range of commercial and residential environments. Designed for double-glazed and through-wall installations, it’s a space-saving solution for those with limited floor space, and yet it can easily accept A4 size envelopes without bending for delivery. Equipped with the latest safety features to prevent post-theft, it is a great investment for office block installations and communal apartment buildings.

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