House Floor Area Calculator. Determine the GROSS FLOOR AREA of the Building. Maximum Floor Area Ratio and Building Coverage Calculator.
Divide the GROSS FLOOR AREA by the BUILDABLE LAND AREA. Total Area A. Estimate the number of sheets needed for sheathing a wall or floor with plywood or OSB.
Gross floor area is the sum of the floor area of each story.
Floor area ratio or FAR is a critical decisive element for the legal construction of any residential or non-residential building. Calculate the FLOOR AREA RATIO. In this article WealthHow tells you how to calculate floor area ratio and equips you with a calculator for the same purpose. Sometimes you will end up with leftovers that are too small to use and you may need additional sheathing material.