Corridor Walls

OCCUPANCY TYPE
(new building)
CODE REF. CORRIDOR WALL FIRE RATING REQUIREMENTS
AMBULATORY
(Not Sprinklered)
(20.3.6.1 and 38.3.6.1) 1-hour,
No Requirement if occupied by single tenant,
AMBULATORY
(Sprinklered)
(20.3.6.1 and 38.3.6.1) No Requirement
ASSEMBLY
(Not Sprinklered)
(12.3.6.1) 1-hour if OL > 30,
No requirement if 50% of exit capacity is discharging to outside.
ASSEMBLY
(either Sprinklered or with smoke detection system)
(12.3.6.2) No Requirement
BUSINESS
(Not Sprinklered)
(38.3.6.1) 1-hour,
No Requirement if occupied by single tenant,
BUSINESS
(Sprinklered)
(38.3.6.1) No Requirement
HEALTHCARE (18.3.6.1) Limit transfer of smoke
EDUCATIONAL
(Not Sprinklered)
(14.3.6) 1-hour,
EDUCATIONAL
(Sprinklered)
(14.3.6) Wall to be smoke partition
ONE & TWO FAMILY DWELLINGS
(-) No Requirement
HOTELS AND DORMITORIES
(Not Sprinklered)
(28.3.6) 1-hour
HOTELS AND DORMITORIES
(Sprinklered)
(28.3.6) 30-minutes
APARTMENTS
(Not Sprinklered)
(30.3.6.1) 1-hour
APARTMENTS
(Sprinklered)
(30.3.6.1) 30-minutes
MERCANTILE
(Not Sprinklered)
(36.3.6.1) 1-hour,
Not Required if space is occupied by single tenant
MERCANTILE
(Sprinklered)
(36.3.6.1) No Requirement
STORAGE
(42.3.6) No Requirement, provision of 7.1.3.1 shall not apply
Note as per 7.1.3.1 – if ‘exit’ corridor will serve >30 occupants, then it’s walls must be 1-hour fire rated. Though this shall not apply where otherwise requirements are provided in table below.

Notes:

  • Code Reference used is NFPA-101 2012 edition unless otherwise noted.
  • These information is not complete and intended to be used as quick references only, always refer to NFPA or your local codes for complete information.