To find the radius divide by 2. Once you have this calculated multiply the total by 314 pi. Flooring Measurements Flooring Buying Guide Carpet This can be obtained from the builder. . Let LL FLooring professional local installers help you upgrade your home flooring. Divided by 2 the square footage for the triangular corner becomes around 1 ½ feet. This will give you the area of the complete. Multiply your base and height measurements together. For example if your room is 15 feet 9 inches long youll divide 9 by 12 to get 75. Circular Floor Plans For circular floor plans use the formula. Your length measurement is 1575. Pi π multiplied by the radius. Obtain a Copy of Floor Plan. If you have more. That gives you 12-6. From flooring to paint to landscaping knowing how to ca. Calculate the Final Square Footage. Apply the Square Footage Formula The next step in how to calculate s...