Insights

What is the Difference Between a Cat A and Cat B Fit Out?


A fit out relates to the process of making an interior space suitable for occupation. It is the end-to-end process of transforming a building’s concrete shell into a habitable working environment. A fit out includes the electrical, mechanical, decoration and furnishing of a space.

In many cases, a developer or landlord will complete the base construction of an interior space which is referred to as a CAT A. It’s then passed to the occupant who will more than likely appoint an expert in office interiors, to complete the final fit-out that’s tailored to their requirements which in the world of commercial office design is called a CAT B.

Category A Explained


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.


Category B Explained


Cat B fit out follows on from Cat A fit out and shapes interior spaces, involving everything from building different rooms, to choosing the art on the walls. Floorplans materialise, finishes are chosen and branding is pumped into the space, giving clients an end product all their own. If Cat A is a blank canvas, Cat B is a finished work of art. These fit outs incorporate the things that make a space functional, but they also provide the opportunity to bring an occupant’s company to life. Cat B projects are great for clients who want a space tailored to their people and their own requirements.

Cat A fit outs include:
• Lighting
• Air conditioning
• Toilets
• Raised access flooring
• Grid ceilings
• Basic fire detection systems

Cat B fit outs include:
• Partitions and doors
• Floor finishes
• Specialist lighting and facilities
• Cafés, teapoints and kitchen area
• Furniture
• Branded material and décor

Keeping the Costs of Office Refurbishment Competitive

Here at Hog Group, we are constantly evolving and developing our services and products to meet the demands and every changing requirements of our clients. We undertake a variety of projects for various sectors of the market, ranging from £10k to £5m+, so we're confident that we can cater for your needs. Whilst a large portion of our current work is in London and the South East, we are happy to travel for the right work. Simply get in touch with a member of the team to discuss your bespoke requirements and refresh your workspace.

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