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Proudly Australian Made

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Cave Letterbox Range

Designed for installation in a brick or block wall cavity.


While letterboxes are getting less use these days, they are still needed for various small deliveries, so why not turn them into a stylish feature by combining your House Number / Street Name into the fascia, giving your home added street appeal.

We cut your Number / Street Name through the Aluminium Fascia,  then we fit an alternative plate behind to provide a the contrast.

Now available with Solar Powered Backlighting.

Email us for more information on this feature: info@bobject.com.au

Available in 4 different finishes.  (We guarantee that they won’t rust)

  • Brushed Aluminium
  • Satin Black Aluminium
  • Satin White Aluminium

Number / Letter highlight options are:

  • Matt Black Acrylic
  • Mirror Aluminium
  • Brushed Aluminium

The front fascia is fitted with a self closing aluminium flap. We send these boxes out completely assembled, so once you have the hole cut in the wall, Installation is a breeze, just slide in from the front and screw the internal side screws out locking the box in place. See here for full installation instructions. INSTALLATION

The actual box has the lockable rear door integrated into it.  For added security the lock has 200 key combinations, that makes the possibility of another key fitting your lock extremely rare.

Surprisingly most mass produced letterboxes come with only 6 key combinations for their locks. Allowing this sort of thing to happen, Mail box theft.

Its all about keeping your mail dry, why would you buy a letterbox if it didn’t do that! 

We make the boxes to suit the shallow depth of modern wall construction, but if you have a deep brick column, or require them to fit large A4 envelopes please contact us.



Click on Image below for Cave Letterbox Sizes & Prices

Installation Instructions

Easy detailed instructions on how to fit your Cave Letterbox


How we get it to you


How we make you feel at ease with your purchase.