Tips on Measuring for Carpet
To determine how much carpet per square foot you need to install, multiply length times width. When measuring, round off inches to the nearest foot. For irregularly shaped floors, divide them into individual sections, calculate the square feet in each one, and then add them together. For stairs, measure the width of the stairway and round off inches to the nearest foot. Enter the number of steps in the stairway. The calculator will determine how many yards are needed to cover the full width of the stairs and all treads and risers.