Maximise your internal space with our Bracketless Portal System.
Our unique Bracketless Portal System is constructed using cold-formed flat Z450 galvanised coil. Created in 2005, this patented system has been designed for efficiency and appeal.
We understand that internal space is key for any business, and our in-house team of experts developed the Bracketless Portal System with this in mind. Our system allows steel columns and rafters to be nested together and directly bolted rather than being joined with a bracket. This allows for a stronger connection between the sections, as well as faster construction times and reduced labour costs.
Generally, other cold-rolled structural systems will have a knee or brace strut to support the rafter sections. However, a knee brace limits the amount of usable space in a building which isn’t ideal for vehicle access or storage space. With the Bracketless Portal System, you can unlock more internal space and maximise your profitability.
In addition to more space, this system offers protection against birds and vermin. The angled shape of our bird-resistant purlins makes it impossible for a bird to perch on, preventing them from roosting in your building. And instead of using a bottom girt 300mm above the ground, we can incorporate a vermin girt to sit on top of the slab and tie it into the structure. The cladding on the exterior wall will come over the face of the vermin girt. With this unique profile, any vermin around will be unable to enter your building. The result is an easily maintained building that looks great for longer.
Plus, the innovative nature of the Bracketless Portal systems means we can create modern designs that are unique to every project. Over the years, we have produced a wide range of projects using the Bracketless Portal System, including retail stores, storage facilities, commercial company spaces and more.
Structural Points of Difference
Embedded splice plate option
Our strongest and stiffest ground connections. C-Section splice plates are cast into the concrete foundations. The top of the ESP projects sit above the concrete, enabling the portal frame columns to slide over and bolt into position. The alternative to ESPs are Bolted Ground Brackets.
Note: Embedded Splice Plates normally lead to steel weight savings compared to Bolted Ground Brackets.
Bolted Ground Brackets
Our simplest column connections. They consist of simple angle brackets, which bolt the portal column down to the top of the foundations. The alternative to Bolted Ground Brackets are Embedded Splice Plates (ESPs).
Note: Larger portal frames are normally required when using Bolted Ground Brackets.
Nested Roof Purlins and Wall Girts
These are nested between the portal frames and bolted into place. They provide a stronger, better-looking building with more usable space between the portal columns. Our competitors typically use purlins and girts screwed to the outside of the portal frame.
No Obtrusive Knee Braces or Apex Braces
Unlike our competitors, our Bracketless Portal System doesn’t require obtrusive knee braces or apex braces to support the portal rafter. Other cold-rolled structural systems often use knee braces, which severely limits the amount of usable space within the building. This can cause problems when moving vehicles or providing storage/racking.
Our optional bird-resistant purlins are designed specifically to prevent birds landing or roosting on the purlins.
Bracketless Portal System
The Bracketless Portal System offers a more cost-effective option to hot-rolled steel or timber products for nearly every build. Structural sections are prefabricated in a purpose made factory and simply bolted together on site - drastically reducing construction time. The system can be adapted to virtually any size and shape, without compromising the structural integrity of the building. This proven system was designed for simplicity. It looks good as well as making better use of precious raw materials.
Fully Bolted (not TEK screwed)
Our structural connections are fully bolted. These make our connections incredibly strong – as well as looking great. Most of our competitors TEK screwed connections, which we avoid.
Vermin-Resistant Bottom Girts
Instead of using a c-section as the bottom girt, we can provide proprietary vermin resistant girt. The vermin resistant girt fixes to the slab and acts as the bottom girt as well as replacing the bottom wall flashing.