S03 Expanding Security Door System


Why should I choose the S03 for my home?

  • Strength
    Custom made, fully-framed galvanised steel construction made
    from 95% solid steel for ultimate strength.
    Features solid brass rivets, ensuring there is no weakness.
  • Custom Made
    Measurement and fitting is carried out by our design team.
  • Unobtrusive
    The S03 will fold away behind curtains or blinds when not in use
    and is available in 4 standard colours to blend in with your lifestyle.
  • Long Lasting
    The S03 grille has been treated, epoxy powdercoated and
    galvanised against corrosion.
  • Unique quick-action key-less lock
      This unique locking system improves your personal protection where you are at risk
    • Slam door instant locking without turning key
    • A 12mm pin for extra strength
    • Three locking points in one lock.
    • Double hook for extra strength
  • Bottom Track
    Bottom track can be fixed, removable or hinged.


Technical Specifications 

Trellis Doors - Security Doors, Roller Shutters, and Security Shutters

The Australian Trellis Door Company has developed arguably the world's most extensive and diverse range of expanding security doors suitable for securing most residential, commercial, and industrial applications. Commencing operations in 1985, Trellis Doors remains the market leader in this field, pioneering world first doors and security features for its range of security doors, security shutters, and roller shutters.

In recognition of our product quality, our customer service, and our company's technological advancements, we have been invited to participate on many prestigious projects such as the Australian National Maritime Museum, The Bovis Lend Lease / Telstra national contract, the Woolworths Plus Petrol national contract and the Dick Smith Electronics national contract.

Whilst continually seeking to further develop our trellis security doors range as new technologies come to hand, our engineers have also focused on developing other quality security products in an effort to provide the customer with what is now the most diverse range of barrier security systems on the market. All products are manufactured and assembled in our factory in St Peters, Sydney.

Our products include security doors and more:

  • security doors
  • window grilles
  • key lockable removable window bars
  • driveway gates
  • aluminium roller shutters
  • and folding closures

Our commitment is to supply innovative ideas and solutions, quality doors and security products such as security doors, security shutters and roller shutters, backed up by uncompromising service.