There is a growing acceptance in this country that the acoustic properties of classrooms render them inadequate to operate as effective teaching spaces. Recent studies conducted by the New Zealand Classroom Acoustics Research Group (Dodd, Wilson et.al., 2001) incorporating both subjective questionnaires and objective measurements of classrooms have confirmed this concern, and have indicated that in relocatable classrooms, a likely source of the acoustical problems is the floor. Even so this is a largely subjective observation, one which is difficult to correlate with identifiable measurable properties of the space. Nor is there a recognized method for creating a standardized sound field in a classroom to measure those properties, whatever they might be. This investigation is an effort to obtain such a method for testing and comparing classroom floor noise.