It seems a simple question, but understanding exactly what an office fitout consists of and the 4 key fitout types is crucial to the success of such a project and to understand its requirements.

Office Fitout is the term used to describe the process of making interior spaces suitable for occupation and use as an office environment.

This involves developing the space using a wide range of unique features that are specifically designed to create a space that fully meets the requirements of the final user. Depending on the degree of completion of the building, and the interior specification required by the occupant, fitouts can take a range of different forms which are described as below:

Shell & Core

At this stage, the building is just the completed metal and concrete framework and base plate but with no internal fitting complete. The key areas that are covered at this stage are the main lobbies and reception space, stairwells and lift shafts and the main wall section for toilets. Once this is completed, a basic shell is left ready for the next stage of the fitout process.


Cat A takes the basic shell of the building and turns it into a more useable space for the developer and landlord to work with. This mainly involves installing the floors and ceilings, basic mechanical and electrical services such as air conditioning and fire protection systems. This then leaves the space ready for the main transformation to be carried out.


A Cat A+ fitout is positioned in-between the two main stages and are produced for the Landlord of the space wanting to lease almost immediately. This means that the design is not developed to fully suit the requirements of a specific company but is at the same level of completion so that the space can be fully occupied within very little time. This category can also be known as ‘turn-key’


Cat B is the stage where the bespoke design elements are added to the space that makes it unique and fully function to the requirements of the company that will occupy it. This stage enables the appropriate branding and company identity to be introduce that makes the space specific. Key areas focused on at this stage will include decorative flooring, wall and ceiling finishes, installing partitioning for meeting rooms, creating breakout spaces and installing the furniture.

Now that you have a greater understanding of what exactly an office fitout actually is and its 4 key types, you can begin to define your office needs to successfully move the project through the fitout process.

Get in touch to download your free version of the Calibro Office Fitout Guide today which takes you through the entire fitout process step-by-step: | +44 (0) 28 9442 5200


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