// CODE SNIPPET
504.4 Number of Stories
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The maximum number of stories of a building shall not exceed the limits specified in Table 504.4.
| OCCUPANCY CLASSIFICATION | TYPE OF CONSTRUCTION | |||||||||
| SEE FOOTNOTES | TYPE I | TYPE II | TYPE III | TYPE IV | TYPE V | |||||
| A | B | A | B | A | B | HT | A | B | ||
| A-1 | NS | UL | 5 | 3 | 2 | 3 | 2 | 3 | 2 | 1 |
| S | UL | 6 | 4 | 3 | 4 | 3 | 4 | 3 | 2 | |
| A-2 | NS | UL | 11 | 3 | 2 | 3 | 2 | 3 | 2 | 1 |
| S | UL | 12 | 4 | 3 | 4 | 3 | 4 | 3 | 2 | |
| A-3 | NS | UL | 11 | 3 | 2 | 3 | 2 | 3 | 2 | 1 |
| S | UL | 12 | 4 | 3 | 4 | 3 | 4 | 3 | 2 | |
| A-4 | NS | UL | 11 | 3 | 2 | 3 | 2 | 3 | 2 | 1 |
| S | UL | 12 | 4 | 3 | 4 | 3 | 4 | 3 | 2 | |
| A-5 | NS | UL | UL | UL | UL | UL | UL | UL | UL | UL |
| S | UL | UL | UL | UL | UL | UL | UL | UL | UL | |
| B | NS | UL | 11 | 5 | 3 | 5 | 3 | 5 | 3 | 2 |
| S | UL | 12 | 6 | 4 | 6 | 4 | 6 | 4 | 3 | |
| E | NS | UL | 5 | 3 | 2 | 3 | 2 | 3 | 1 | 1 |
| S | UL | 6 | 4 | 3 | 4 | 3 | 4 | 2 | 2 | |
| F-1 | NS | UL | 11 | 4 | 2 | 3 | 2 | 4 | 2 | 1 |
| S | UL | 12 | 5 | 3 | 4 | 3 | 5 | 3 | 2 | |
| F-2 | NS | UL | 11 | 5 | 3 | 4 | 3 | 5 | 3 | 2 |
| S | UL | 12 | 6 | 4 | 5 | 4 | 6 | 4 | 3 | |
| H-1 | NSc, d | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | NP |
| S | ||||||||||
| H-2 | NSc, d | UL | 3 | 2 | 1 | 2 | 1 | 2 | 1 | 1 |
| S | ||||||||||
| H-3 | NSc, d | UL | 6 | 4 | 2 | 4 | 2 | 4 | 2 | 1 |
| S | ||||||||||
| H-4 | NSc, d | UL | 7 | 5 | 3 | 5 | 3 | 5 | 3 | 2 |
| S | UL | 8 | 6 | 4 | 6 | 4 | 6 | 4 | 3 | |
| H-5 | NSc, d | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 2 |
| S | ||||||||||
| I-1 Condition 1 | NSd, e | UL | 9 | 4 | 3 | 4 | 3 | 4 | 3 | 2 |
| S | UL | 10 | 5 | 4 | 5 | 4 | 5 | 4 | 3 | |
| I-1 Condition 2 | NSd, e | UL | 9 | 4 | 3 | 4 | 3 | 4 | 3 | 2 |
| S | UL | 10 | 5 | |||||||
| I-2 | NSd, f | UL | 4 | 2 | 1 | 1 | NP | 1 | 1 | NP |
| S | UL | 5 | 3 | |||||||
| I-3 | NSd, e | UL | 4 | 2 | 1 | 2 | 1 | 2 | 2 | 1 |
| S | UL | 5 | 3 | 2 | 3 | 2 | 3 | 3 | 2 | |
| I-4 | NSd, g | UL | 5 | 3 | 2 | 3 | 2 | 3 | 1 | 1 |
| S | UL | 6 | 4 | 3 | 4 | 3 | 4 | 2 | 2 | |
| M | NS | UL | 11 | 4 | 2 | 4 | 2 | 4 | 3 | 1 |
| S | UL | 12 | 5 | 3 | 5 | 3 | 5 | 4 | 2 | |
| R-1 h | NSd | UL | 11 | 4 | 4 | 4 | 4 | 4 | 3 | 2 |
| S13R | 4 | 4 | 4 | 3 | ||||||
| S | UL | 12 | 5 | 5 | 5 | 5 | 5 | 4 | 3 | |
| R-2h | NSd | UL | 11 | 4 | 4 | 4 | 4 | 4 | 3 | 2 |
| S13R | 4 | 4 | 4 | 4 | 3 | |||||
| S | UL | 12 | 5 | 5 | 5 | 5 | 5 | 4 | 3 | |
| R-3h | NSd | UL | 11 | 4 | 4 | 4 | 4 | 4 | 3 | 3 |
| S13D | 4 | 4 | 3 | 3 | ||||||
| S13R | 4 | 4 | 4 | 4 | ||||||
| S | UL | 12 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | |
| R-4h | NSd | UL | 11 | 4 | 4 | 4 | 4 | 4 | 3 | 2 |
| S13D | 4 | 4 | 3 | 2 | ||||||
| S13R | 4 | 4 | 4 | 3 | ||||||
| S | UL | 12 | 5 | 5 | 5 | 5 | 5 | 4 | 3 | |
| S-1 | NS | UL | 11 | 4 | 2 | 3 | 2 | 4 | 3 | 1 |
| S | UL | 12 | 5 | 3 | 4 | 3 | 5 | 4 | 2 | |
| S-2 | NS | UL | 11 | 5 | 3 | 4 | 3 | 4 | 4 | 2 |
| S | UL | 12 | 6 | 4 | 5 | 4 | 5 | 5 | 3 | |
| U | NS | UL | 5 | 4 | 2 | 3 | 2 | 4 | 2 | 1 |
| S | UL | 6 | 5 | 3 | 4 | 3 | 5 | 3 | 2 | |
UL = Unlimited; NP = Not Permitted; NS = Buildings not equipped throughout with an automatic sprinkler system; S = Buildings equipped throughout with an automatic sprinkler system installed in accordance with Section 903.3.1.1; S13R = Buildings equipped throughout with an automatic sprinkler system installed in accordance with Section 903.3.1.2; S13D = Buildings equipped throughout with an automatic sprinkler system installed in accordance with Section 903.3.1.3.
- See Chapters 4 and 5 for specific exceptions to the allowable height in this chapter.
- See Section 903.2 for the minimum thresholds for protection by an automatic sprinkler system for specific occupancies.
- New Group H occupancies are required to be protected by an automatic sprinkler system in accordance with Section 903.2.5.
- The NS value is only for use in evaluation of existing building height in accordance with the International Existing Building Code.
- New Group I-1 and I-3 occupancies are required to be protected by an automatic sprinkler system in accordance with Section 903.2.6. For new Group I-1 occupancies, Condition 1, see Exception 1 of Section 903.2.6.
- New and existing Group I-2 occupancies are required to be protected by an automatic sprinkler system in accordance with Section 903.2.6 and 1103.5 of the International Fire Code.
- For new Group I-4 occupancies, see Exceptions 2 and 3 of Section 903.2.6.
- New Group R occupancies are required to be protected by an automatic sprinkler system in accordance with Section 903.2.8.
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