Company Overview
Established in 1996, Caledonian’s early focus was in the construction of highly secure prison cells for HM Prison Service, where the design and product robustness has been proven in the construction of over 7000 cells. The company’s expertise has progressively been applied to other markets including Ministry of Defence (MoD), Hotel, Residential and Student sectors where the basic robust steel frame design has been adapted to provide an equivalent structure to that of a traditional in situ construction process.
95% of Caledonian’s turnover is performed within Integrated Supply Chain relationships – long term framework contracts. These include National Offender Management Strategic Alliancing Framework,
MoD SLAM (Single Living Accommodation Modernisation) Prime Contract (Caledonian is part of the Bovis Lend Lease supply chain), Flagship Training cadet accommodation Prime Contract, Tulip Inn (Hotel operator) Co-operation Agreement, Berkeley Group Call Off Contract etc. Within these, and other relationships, Caledonian have early involvement at concept stage and take responsibility for all project design activities, ensuring full integration and optimisation of the building in terms of cost, programme and safety.
Construction Process
The Caledonian construction process is based upon the concept of pre-engineering: constructing buildings from a series of factory manufactured room modules. Modules are created from fully welded steel frames, using hot rolled steel to create the basic module and cold rolled steel to provide joisting and wall panel structures. These are fitted out as complete rooms, including plumbing and wiring, full completion of en-suites, decorations and furniture fitting, prior to delivery and installation on site. The modular structure is fully self-supporting. The hot rolled frame design allows tremendous flexibility in design terms, with angled modules and panel sections able to be incorporated alongside the more typical rectangular module structures.
The units are delivered to site with appropriate fixing points added to facilitate any site added cladding systems. Services between units are connected on site with central corridors used as horizontal distribution routes. Individual modules are connected on site to ensure correct positioning and structural continuity. Once interconnected, the modules form the full structure of the building, creating an extremely rapid, high quality build, equivalent in performance terms, to traditional site based construction processes.
Other techniques, which include panellised elements and linkage to traditional forms of construction (eg. in situ concrete and steel structures) for non-modular areas, are employed by Caledonian, to ensure that the optimum solution in terms of cost, quality, programme and safety is achieved for each specific building.
