This tool helps determine construction requirements for Group A occupancies (Assembly) per NBC 2020 Division B 3.2.2. Final compliance must be verified by a qualified professional.
Building Configuration
Compliance Results
Reference Tables
Division
Storeys
Sprinklered
1 Street (m²)
2 Streets (m²)
3 Streets (m²)
Special Conditions
Division
Noncombustible
Combustible
Heavy Timber
Mixed
Division 1
Limited
(See 3.2.2.21)
Division 2
≤2 storeys
Roof only
Division 3
≤2 storeys
(See 3.2.2.30)
Division 4
Occupant load <1500 and LD≥6m
Roof only
No
Division
Floors
Mezzanines
Loadbearing Walls
Roof
Division 1
45 min
45 min
Match supported
HT or rated
Division 2
1-2 hr
1 hr
Match supported
45 min
Division 3
1-2 hr
1 hr
Match supported
45 min or HT
Division 4
2 hr
1 hr
Match supported
HT only
Compliance Assistant
v1.0.0
Hello! I'm your AI Compliance Assistant for Group A occupancies. I can answer questions about assembly buildings, construction types, and fire protection requirements from the NBC.