A study was made of the fuel complex in 70-year old lodgepole pine stands in west-central Alberta to facilitate measurement and prediction of weight-and-size distribution of fuel components. Results showed that the weight of the entire fuel complex increased with increasing stand density in the range of 300 to 900 stems per acre (741 to 2,224 stems per hectare) but that the weight of some fuel components decreased in the same stand-density range. Correlations between basal area and expressions of fuel weight were used to construct prediction equations for minor vegetation, forest-floor litter (except humus), slash, the standing tree crop, and the entire fuel complex. The weight of aerial-fuel components can be estimated with greater precision than the weight of ground-fuel components. The weight of ground-fuel components may also be estimated from weight per acre-inch.