The following formula shall be used in computing allowable area:

A = {_{a}A + [_{t}A × _{t}I] + [_{f}A × _{t}I]}_{s} | (Equation 14-3) |

where:

A_{a} | = | Allowable building area per story (square feet). |

A_{t} | = | Tabular building area per story (square feet) in accordance with Table 503 of the Florida Building Code, Building. |

I_{s} | = | Area increase factor due to sprinkler protection as calculated in accordance with Section 506.3 of the Florida Building Code, Building. |

I_{f} | = | Area increase factor due to frontage as calculated in accordance with Section 506.2 of the Florida Building Code, Building. |