Abstract: The present invention relates to a method and apparatus for allowing the accurate calculation of the minimum number of linear feet of carpet which must be cut from a standard width roll and delivered to an installation site to completely, properly and efficiently cover the floor at the installation site. The present invention provides a length of measurement tape which is scaled in width to the width of a standard roll of carpet. The measurement tape is perforated at increments along its length and width, and includes indicators of carpet grain direction and pattern repetition intervals along its length and/or width.