Tristan Roberts Founder & Community Director Metricorps LEEDuser Expert7780 thumbs up Fri, 06/25/2010 - 02:41 Yes, you are understanding things correctly. These credits have no minimum materials needed. In LEED 2009, the credit has been changed to address all flooring systems, for for LEED CS 2.0, you can install just some carpet and earn the credit.