A study of the liquid permeability of western red cedar wood under green moisture-content conditions was undertaken to explore the relationship of permeability to collapse. At this meeting last year, it was reported that a simple method had been devised to predict collapse in green test material by taking wafers from specimen boards and drying them rapidly in a forced draft oven at 105° C. Wafers that withstand these drastic conditions without deformation are deemed collapse resistant; those that crinkle, washboard, or deform are considered collapse susceptible. The deformation in the wafer forecasts zones of potential collapse in the green parent material.