Gross Floor Area Calculator

Calculate Gross Floor Area



Formula

To calculate the gross floor area (\(GFA\)):

\[ GFA = A \times F \]

Where:

The area of each individual floor can further be calculated using the following formula:

\[ A = L \times W \]

Where:

What is Gross Floor Area?

A gross floor area is defined as the sum of the areas of all floors in a building. A floor is typically limited to those with a ceiling height of at least 7.5 feet. In general, any floors that meet the height requirement are included in the gross floor area. This includes garages, mezzanines, basements, etc.

Example Calculation 1

Let's assume the following values:

Using the formula:

\[ GFA = 2000 \times 5 = 10000 \text{ ft²} \]

The gross floor area is 10000 ft².

Example Calculation 2

Let's assume the following values:

Using the formula:

\[ GFA = 1500 \times 3 = 4500 \text{ ft²} \]

The gross floor area is 4500 ft².