Back to Archive CAT A vs CAT B Office Fit Out: What’s the Difference? Introduction Understanding the difference between CAT A and CAT B is essential when planning an office fit out. While both stages play a key role in preparing a commercial space, they serve very different purposes. As an experienced fit out contractor, we help clients navigate both stages to ensure their workspace is delivered efficiently and aligned with their business needs. What Is a CAT A Fit Out? A CAT A fit out prepares a commercial space for lease and provides a blank canvas for tenants. It typically includes: Raised floors Suspended ceilings Basic lighting and HVAC systems Fire safety systems Internal finishes What Is a CAT B Fit Out? A CAT B fit out transforms a space into a fully functional workplace tailored to the business. This includes: Partitioning and meeting rooms Workstations and breakout areas Branding and finishes Kitchens and welfare facilities IT and AV infrastructure Which Fit Out Do You Need? The right approach depends on your role and requirements: Landlords typically require CAT A Tenants require CAT B Some projects involve both stages Working with a knowledgeable fit out specialist ensures your project is aligned with both your operational needs and the building requirements. Why Work With a Design and Build Contractor? A design and build contractor provides a single point of responsibility, helping to: Streamline communication Improve cost control Reduce project timelines Start Your Office Fit Out Project If you’re planning a CAT A or CAT B office fit out, our team can guide you through every stage. Explore our office fit out services to see how we deliver tailored solutions across the South East. Related Reading Planning your budget: How Much Does an Office Fit Out Cost in the South East? Understanding the process: What Does an Office Fit Out Contractor Do? You may also like Office Fit Out vs Office Refurbishment: What’s the Difference? Read more How Long Does an Office Fit Out Take? Timeline Explained Read more What Does an Office Fit Out Contractor Do? Read more