The species averages for wood density of Canadian trees and standing timber volumes currently listed in the ASTM standard method D2555 are based on old surveys. When compared to two studies more recently conducted on the wood density of British Columbia- and Ontario-grown trees, the ASTM values suffered from much smaller sample sizes and shortage of data from the Ontario region. The ASTM values could be augmented or replaced with data from the British Columbia study to increase the precision in the estimates of the species population parameters. Data from the Ontario study should be used as supplementary information. The standing timber volumes for Canadian species in the ASTM are based on 1965 statistics and should be updated with the 1990 forest inventory compiled by Forestry Canada.