Commercial letterboxes

Commercial letterboxes are the main focus at Hermax. Our modern range is made from sturdy aluminium and are powder-coat finished in a wide variety of colours. Banked mailboxes are available in several standard formats but we're able to adapt to your individual needs. Letterbox openings are available in landscape and portrait sizes. Sizes are Australia Post recommended and make A4 letters a breeze.

Exclusive to Hermax: New sturdy and secure design

Sturdy and secure doors

Our new design features a beautiful and minimalist front profile. The face is smooth and modern and contains a small groove where the number strip is positioned.

The doors on our design are now a whopping 1.8mm thick. This makes it much much more resistant to damage as well esuring that a highest level of physical security is provided against intruders. Best of all our new design is available at no extra cost.

Our new design is exclusive to Hermax letterboxes.

Sturdy and secure frames

We also offer a new hardier and thicker structural frame to match our stronger doors. These frames have a new stronger and more compact floor and ceiling system for our commercial banks of letterboxes. This allows us to offer a stronger and better product with no increase in cost.


  • Direct to the public means that you save money with Ex. factory prices.
  • Australia Post ® recommended sized openings for easy and A4 handling.
  • An established Australian brand that you can trust Hermax to deliver.
  • We have a fast turn around time on orders allowing us to meet your needs fast.
  • Flexible with your requirements so that we fit with different styles and needs.
letterbox opening


  • Direct to the public with Ex. factory prices.
  • Front or rear opening banked letterboxes.
  • Latch or key locks available.
  • Fast 10 to 15 day turnaround time from order confirmation.
  • Huge range of colours available including Dulux ® colours.
  • Numerous colours available for lettebox name strips.

Standard letterbox shapes and sizes

These standard sizes are recommeded by Australia Post ®

  1. Portrait: 240mm wide x 330mm deep x 190mm high
  2. Landscape: 340mm wide x 240mm deep x 190mm high
letterbox lock

How to buy

The best option for buying is to fill out the no-obligation "request a quote" form and we'll get back to you as soon as possible. All contact options include:

  1. For enquiries phone 0412 483 798
  2. For quotes use the request a quote form
  3. For general enquiries use the contact form

Trading hours

Monday to Friday: 7 am to 1 pm (or by special appointment)