Building information:
Notes:
Occupancy classification: 
parts of P (ft)
Construction type: 
Sprinklered? 
Proposed number of stories:
Building perimeter lengths (ft)
Distance to property line or to far side of R.O.W. (ft)
facing north:
facing east:
facing south:
1. Proposed number of stories <= allowable number of stories.
2. Proposed number of stories is positive integer.
3. Sprinkler type NFPA 13R can only be used with group R or I-1 occupancies; check again using NFPA 13 sprinklers, or using no sprinklers.
4. Building perimeter lengths and distances cannot be negative. stories
facing west:
5. Values for both building perimeter and distance must be entered type I-A
6. Using NFPA 13 sprinklers to substitute for 1-hr rating per note? 100
7. Using NFPA 13 sprinklers to substitute for 1-hr rating per note? 100
8. Combination of occupancy and construction type not permitted in Table 503 100
Code version:
100
100
Allowable Areas and Heights:
Warnings:
100
Allowable area per floor:
1. NFPA 13D sprinklers may be installed in 1-2 family dwellings per Sec. 903.3.1.3
100
Total allowable area:
2. Unlimited area possible with yards of 40+ ft around 75% of building, per Sec 507.5 (not calculated here)
100
Maximum allowable height:
3. Unlimited area possible with 1-story, A-3 (some restrictions), Type II, NFPA 13 sprinklers, 60 ft yards, per 507.6 (not calculated here)
100
Maximum allowable stories:
4. Sprinklers required with group A, E, F-1, H, I, M, and S occupancies per Sections 903.2.1 - 903.2.9 as well as in other conditions.
1
    See notes to the left.
100
5. Sprinklers required with group R occupancies per Sec. 903.2.7.
100
100
7. Where NFPA 13 sprinklers substitute for 1-hr rating, exterior walls must still meet Table 601 and 602 requirements.
4
100
9. Other limitations and exceptions may apply; see IBC for details.
100
100
100
revised 18 March 2024
100
100
100
100
100
100
100
100
VLOOkup column number (stories)
2
4
6
8
10
12
14
16
18