IBC Allowable Building Height Calculator

Determine maximum allowable building height in feet and stories per IBC Table 504.3 and 504.4.

Input Parameters

Results

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Max Height
feet
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Max Stories
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Sprinkler Height Increase
feet
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Sprinkler Story Increase
Note: Height limits are measured from grade plane to the average height of the highest roof surface. The sprinkler increase of 20 feet and 1 story is available when a building is equipped with an NFPA 13 sprinkler system throughout. Additional story increases may apply for specific occupancies.

Reference

IBC Table 504.3 - Allowable Building Height (feet) and Stories IBC Section 504.2 - Sprinkler increases: +20 ft height, +1 story Type I-A: Generally unlimited height/stories Type I-B: 65-160 ft depending on occupancy Type II through V: 40-65 ft base heights Sprinkler increase does not apply to unlimited buildings.