An analysis of installation and maintenance costs of carpet, tile, and terrazzo in a wide variety of commercial installations is presented. Over 400,000 square feet of carpeted floors and over 1,000,000 square feet of non-carpeted floors were examined and evaluated to provide prospective floor covering buyers with comparative "use cost" data in chart form. Use cost is determined by three points of evaluation--(1) installation costs, (2) durability, and (3) maintenance costs. The study concluded that carpeting costs more than other flooring to install, but lasts longer and requires less maintenance. Total use costs of carpeting were seen to amount to from 40.8 per cent to 47.6 per cent less than for non-carpeted floors. (RH)