Minecraft wiki entry for Making_nice_floors, associated text: Fancy and polished floors are usually achieved best by alternating two different blocks. This can be wood and wood planks, polished andesite and polished granite, black concrete and white concrete, or more. Brighter floors that look happier are usually achieved with different colors of wool, concrete, terracotta, or glazed terracotta, such as red, yellow, orange, and lime.