Building information:
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Notes:
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Occupancy
classification:
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parts of P (ft)
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Construction type:
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Sprinklered?
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Proposed number of stories:
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Building perimeter
lengths (ft)
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Distance to property
line or to far side of R.O.W. (ft)
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facing north:
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facing east:
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facing south:
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1. Proposed number of stories <= allowable number of
stories.
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2. Proposed number of stories is positive integer.
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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.
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4. Building perimeter lengths and distances cannot be
negative.
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stories
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facing west:
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5. Values for both building perimeter and distance must be
entered
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type I-A
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6. Using NFPA 13 sprinklers to substitute for 1-hr rating per
note?
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100
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7. Using NFPA 13 sprinklers to substitute for 1-hr rating per
note?
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100
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8. Combination of occupancy and construction type not
permitted in Table 503
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100
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Code version:
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100
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100
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Allowable Areas and Heights:
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Warnings:
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100
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Allowable area per floor:
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1. NFPA 13D sprinklers may be installed in 1-2 family
dwellings per Sec. 903.3.1.3
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100
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Total
allowable area:
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2. Unlimited area possible with yards of 40+ ft around 75% of
building, per Sec 507.5 (not calculated here)
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100
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Maximum
allowable height:
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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)
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100
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Maximum
allowable stories:
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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.
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1
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See notes to the
left.
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100
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5. Sprinklers required with group R occupancies per Sec.
903.2.7.
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100
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100
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7. Where NFPA 13 sprinklers substitute for 1-hr rating,
exterior walls must still meet Table 601 and 602 requirements.
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4
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100
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9. Other limitations and exceptions may apply; see IBC for
details.
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100
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100
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100
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revised 18 March 2024
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100
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100
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100
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100
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100
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100
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100
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100
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VLOOkup column number (stories)
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2
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4
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6
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8
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10
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12
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14
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16
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18
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