A short introduction to Multidimensional scaling techniques is given in the context of studies into the meaning of rooms. Three examples of applications are given; an analysis of perceived similarities of room names, which leads to conclusions about underlying components and the specificity of room meaning; judgements of the appropriateness of activities to rooms which are shown to have similar patterns of meaning; and a grid of furniture occur-rences in rooms which yelded less clear patterns, but still the same structures could be discerned. The advantages for environmen-tal psychology of such techniques are summarized.