Measure the length of the room with measuring tape. Odd numbers should be rounded up to the nearest foot, so a floor that measures 12 feet 7 inches should be rounded to 13 feet. Record this number. Measure the width of the room following the same procedure.
Multiply the length by the width to calculate the area in square feet. A room that is 12 feet by 12 feet requires 144 square feet of flooring.
Always measure the floor at the widest point. Sections under counters and appliances must be accounted for unless the counters or appliances are stationary.
Measure L-shaped rooms in two sections if you will be cutting and installing the flooring with a seam between the two areas. This is the least expensive and easiest to install. Otherwise L-shaped areas must be calculated as though they cover the entire width or length of the room and the excess flooring must be cut and removed.
Multiply the number of square feet by the price per square foot to calculate the total price of the new flooring.