Uniclass have developed a new classification system to replace "table J"

Table J is the CAWS system (Common Arrangement of Work Sections)It has been used by NBS and RICS since the late 1980s


  • Systems approach (Wall Systems, Drainage Systems)

  • Broader Scope (from Briefing to Facilities Management)

  • Incorporates all disciplines (including Civil Engineering)

  • New concept: Product Supermarkets (cross-referenced to multiple systems)

The familiar section numbers will disappear (M60, L20)

To be replaced by six digit codes (15 20 32)

Link to NBS website