Corridors.
Baltimore City Code, Building Codes, Part VIII, Section 1020
in effectSection 1020. Corridors.
1020.1 to 1020.2 {As in IFC}
Table 1020.2 Corridor Fire-Resistance Rating
Occupancy | Occupant Load Served by Corridor | Required Fire-Resistance Rating (hours)
Without Sprinkler System | With Sprinkler System
H-1, H-2, H-3 | All | Not Permitted | 1c
H-4, H-5 | Greater than 30 | Not Permitted | 1c
A, B, E, F, M, S, U | Greater than 30 | 1 | 0
R | Greater than 10 | Not Permitted | 0.5c/1d/2e
I-2a | All | Not Permitted | 0
I-1, I-3 | All | Not Permitted | 1
I-4 | All | 1 | 0
A For requirements for occupancies in Group I-2, see §§ 407.2 and 407.3.
B For a reduction in the fire-resistance rating for occupancies in Group I-3, see § 408.8.
C Buildings equipped throughout with an automatic sprinkler system in accordance with §§ 903.3.1.1 or 903.3.1.2 where allowed.
D Group R-3 and R-4 buildings equipped throughout with an automatic sprinkler system in accordance with § 903.3.1.3. See § 903.2.8 for occupancies where automatic sprinkler systems are permitted in accordance with § 903.3.1.3.
E R-occupancy buildings equipped with a single exit in accordance with § 1006.3.4.6.
1020.3 to 1020.7 {As in IFC}
(Ord. 25-061 Section 1.)
Source: City of Baltimore Department of Legislative Reference, City of Baltimore Law Library (codes.baltimorecity.gov; Open Law Library bulk XML)URL: https://codes.baltimorecity.gov/us/md/cities/baltimore/code/building-codes/VIII/1020Fetched: 10/25/2026