The Australian Trellis Door Company™ (ATDC™) offers a mobile access barrier that is increasingly popular for restricting access in manufacturing and construction environments, while still allowing roller doors and loading docks to remain open.

Mobile Trackless Access Barrier
The S04-1™ Mobile Trackless Trellis System is designed to restrict access to loading docks and warehouse roller door entries, preventing the public from wandering into factories and warehouses during trading hours. The system is typically fixed at one end and lockable at the other, but it operates on trolleys, allowing it to be wheeled away and stored out of sight when not in use. In the absence of suitable side-fixing points, the system can also be locked into the floor. This flexibility makes the S04-1™ system very economical and ideal for securing awkward openings that may be challenging to close off otherwise.
Versatile and Practical
The S04-1™ trellis barriers provide significant flexibility and safety. Their design makes them suitable for a variety of applications, ensuring that spaces remain secure without compromising accessibility. This versatility is particularly useful in environments where traditional barriers might be impractical or too costly to implement.
Safety on Construction Sites
The S04-1™ trellis barriers are also effective in providing safe environments on construction sites located near pedestrian traffic. A notable example is the use of these barriers by Bovis Lend Lease at their shopping centre extension project in Charlestown, NSW. Due to noise restrictions, Bovis could not perform construction work at night, so they used these barriers to cordon off mall areas under construction from the trading areas. This allowed construction work to continue during normal centre operating hours without disrupting the shopping experience.
For further information on ATDC’s range of mobile access barriers, look through our comprehensive range of Mobile Barriers. We also offer mobile security barriers for hire. The ATDC team is ready to assist with your security needs, ensuring your premises are protected with the best solutions available.
See our full range of commercial security doors, commercial concertina doors, expandable gates, secure roller shutters, retractable aluminium fencing crowd control barriers for hire, retail glass stacking doors and more.
The Australian Trellis Door Company (ATDC) offers a mobile trackless access barrier (S04‑1 Mobile Trackless Trellis System) that can be placed across an open roller‑door opening to stop public access while still letting the door stay open for loading and airflow.
Yes. The Australian Trellis Door Company (ATDC)’s S04‑1 barriers run on trolleys with heavy duty bottom castor wheels so they can be wheeled away and stored when not in use, and they can be locked at one end or into the floor if there are no side‑fixing points. They are completely trackless having no top track and no floor track.
The Australian Trellis Door Company (ATDC)’s S04‑1 expandable security trellis barriers are designed for retail, commercial, and industrial sites, including cafes and other businesses that need crowd‑control or safety barriers.
The Australian Trellis Door Company (ATDC)’s security barriers are made from steel or from aluminium. There is also a DD Double Diamond steel mesh version from ATDC with a tightly woven trellis design so people cannot reach through to touch goods behind the barrier.
These mobile barriers are cost effective with a starting price of $1000 to buy these with the price POA depending on the size.
Since the system is trackless and not structural, the installation is quick and often takes less than half an hour. Extra time will be required if locating holes need to be drilled into the finished floor.
Yes, The Australian Trellis Door Company (ATDC) provides mobile security barriers for short-term or medium term rent and for purchase.
The Australian Trellis Door Company (ATDC)‘s barriers have a maximum height of 2500mm.
Yes, The Australian Trellis Door Company (ATDC)’s mobile security barriers are the only ones of its type that are WHS safety tested – safe for customers and safe for your staff to operate.They are also tested against and satisfy the provisions of Australian Standards AS4687-2007 Temporary Fencing and Hoarding, in certain circumstances.
Yes, a 12 month commercial warranty on parts, labour and installation.
ATDC keeps these in stock in either a black satin or pearl white powdercoating finish, making lead times often as quick as one to two weeks.
They are available as an emergency exstock, often same day if required.
Yes, the DD Double Diamond version can comply with the use of a lever handle egress.