The recognised method for measuring the relative density of wood in North America is described in the ASTM Standard D2395. Forintek has developed a procedure, which is a variation of one of the ASTM D2395 methods, to quickly and accurately determine the relative density of wood blocks cut from lumber samples. The procedure may be used as part of a quality control program in the production of MSR lumber. The objective is to compare the relative density results obtained following a simplified procedure developed at Forintek, to the ASTM D2395 Method A and Method B procedures. Progress to date is described.