Over the last decade timber residential buildings with a prefabricated load bearing structure intimber have become increasingly common. Occasionally prefabricated timber modules up tosix stories are built and this accentuate among other issues that of large relative verticaldisplacements due to elastic and time-dependent displacements and displacements byshrinkage. In the current study vertical displacements were measured on three modules loadedvertically by a total of 151 kN over the time period of 90 hours. In average the verticaldisplacements measured by the displacement gauges of the modules were 3.17 mm includingdeformation in both a rail and an elastomer isolating block for sound and vibration isolation.