Two of the most common types of office fit-out are Cat A and Cat B. Cat is short for the category, and Cat A and B are terms used for the classification of fit-out as a way of differentiating the elements included in that type of fit-out.
While there is no standard industry definition of the different types of fit-out, we have explained the differences between these types of projects by highlighting key aspects of each type of fit-out below.
There are four main classifications of fit which cover the various stages of building conditions during the design and build phase. They are:
What is a shell and core fit-out?
While part of the fit-out spectrum, the shell and core are technically the states of a building before any type of fit-out occurs. The space won’t be usable at this stage and is the result of the initial construction of the building. Shell and core refer to the concrete and metal frame of a weather-proofed space. It may look complete from the outside, but inside the building’s services, like lighting and air conditioning, aren’t even installed.
A Cat A fit-out is the basic finishing of an interior space, this type of fit-out includes the installation of a building’s mechanical and electrical services. A Cat A project will also include finished internal walls, reception areas and lift lobbies – but that’s it. With raised metal flooring, painted perimeter walls, and a grid ceiling with fitted lights, Cat A spaces are often described as a ‘blank canvas’ as it is ready to be transformed into a Cat B space. Generally commissioned by landlords.
A Cat A fit-out includes: