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PRIMAFRAME

Lightweight, Efficient Steel Frame Solutions

VIEW PRODUCTS

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Primaframe System

A fully engineered, load-bearing steel framing solution ideal for off-site panel

construction, modular housing, and multi-storey developments. Available in both

flat-packed and pre-assembled formats, Primaframe integrates service zones and

insulation provisions for seamless on-site assembly.

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High-Performance Panelised Steel Framing System

The Primaframe system has been developed by Caledan’s in-house design team for use in residential, commercial,

and mixed-use buildings where our system serves as the primary load-bearing structure.


Panels can be pre-assembled off site and installed by an approved installer. During off-site manufacture, sheathing

boards, insulation, and brick tie channels can also be applied, allowing panels to arrive at site pre-boarded. This

enables earlier closure of the building envelope, improved weather protection, and faster overall build programmes.


* Please refer to the current “Caledan Primaframe System Guidance Manual” for more information

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CASE STUDIES

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By Caledan October 13, 2025
Location : Oakdale, Caerphilly Client : Caerphilly County Council Contractor : Willmott Dixon
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March 24, 2022
Caledan have recently completed a first ‘Passivhaus’ project using the Primaframe System. Location : Trecenydd & Trethomas Client : Caerphilly Council Main Contractor : Willmott Dixon Caledan are very pleased to have recently completed a first ‘Passivhaus’ project using the Primaframe System. The penalised system, developed in conjunction with Willmott Dixon to the requirements of Caerphilly County Borough Council, achieved incredible air tightness results whilst using the British Gyspum Glasroc X external sheathing board, which has resulted in the project being awarded Passivhaus status. In a recent UKAS accredited fire test the Primaframe ‘through wall’ build up surpassed expectations and achieved 90 mins, integrity, insulation & load bearing requirements, again whilst utilising British Gyspum products. Similarly, impressive results were achieved when testing the loaded Primaframe acoustic floor build up, which also exceeded expectations.

Why Choose Primaframe:

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Key Benefits of the Primaframe System:


  • Fully engineered, load-bearing steel frame solution.
  • Faster construction through off-site prefabrication.
  • Early weatherproofing for improved programme certainty.
  • Fire-tested wall and floor systems compliant with UK and European standards.
  • Structural flexibility with seamless hot-rolled integration where required.
  • Compatible with Masonry and lightweight cladding systems.
  • Backed by Caledan’s professional indemnity insurance and expert design support.
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STUD & TRACK

Our Stud & Track system is a lightweight, versatile infill framing solution designed for use with both steel and concrete primary structures. It’s the perfect choice for creating external and internal wall systems that are quick to install, easy to handle, and deliver excellent thermal efficiency.